# User contributions

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- 01:00, 5 February 2015
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**(+1,117)** . . N 2015 AMC 12A Problems/Problem 25 (Created page with "==Problem== A collection of circles in the upper half-plane, all tangent to the <math>x</math>-axis, is constructed in layers as follows. Layer <math>L_0</math> consists of two ...") - 00:59, 5 February 2015 (diff | hist) . . (+394) . . 2015 AMC 12A Problems/Problem 24
- 00:58, 5 February 2015
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**(+774)** . . 2015 AMC 12A Problems/Problem 23 - 00:55, 5 February 2015 (diff | hist) . . (+63) . . 2015 AMC 12A Problems/Problem 22
- 00:54, 5 February 2015 (diff | hist) . . (+80) . . 2015 AMC 12A Problems/Problem 20
- 00:53, 5 February 2015 (diff | hist) . . (+354) . . 2015 AMC 12A Problems/Problem 18
- 00:51, 5 February 2015 (diff | hist) . . (+60) . . 2015 AMC 12A Problems/Problem 15
- 00:50, 5 February 2015 (diff | hist) . . (+60) . . 2015 AMC 12A Problems/Problem 14
- 00:50, 5 February 2015 (diff | hist) . . (+60) . . 2015 AMC 12A Problems/Problem 13
- 00:49, 5 February 2015 (diff | hist) . . (+60) . . 2015 AMC 12A Problems/Problem 12
- 00:48, 5 February 2015 (diff | hist) . . (+1) . . 2015 AMC 12A Problems (→Problem 11)
- 20:47, 4 February 2015
(diff | hist) . .
**(+822)** . . N 2015 AMC 12A Problems/Problem 11 (Created page with "==Problem== On a sheet of paper, Isabella draws a circle of radius <math>2</math>, a circle of radius <math>3</math>, and all possible lines simultaneously tangent to both circl...") - 20:44, 4 February 2015
(diff | hist) . .
**(+707)** . . N 2015 AMC 12A Problems/Problem 10 (Created page with "==Problem== Integers <math>x</math> and <math>y</math> with <math>x>y>0</math> satisfy <math>x+y+xy=80</math>. What is <math>x</math>? <math> \textbf{(A)}\ 8 \qquad\textbf{(B)}...") - 20:36, 4 February 2015
(diff | hist) . .
**(+528)** . . N 2015 AMC 12A Problems/Problem 9 (Created page with "==Problem== A box contains 2 red marbles, 2 green marbles, and 2 yellow marbles. Carol takes 2 marbles from the box at random; then Claudia takes 2 of the remaining marbles at r...") - 20:35, 4 February 2015 (diff | hist) . . (0) . . 2015 AMC 12A Problems/Problem 5 (→See Also)
- 20:35, 4 February 2015
(diff | hist) . .
**(+1,226)** . . N 2015 AMC 12A Problems/Problem 5 (Created page with "==Problem== Amelia needs to estimate the quantity <math>\frac{a}{b} - c</math>, where <math>a, b,</math> and <math>c</math> are large positive integers. She rounds each of the i...") - 20:31, 4 February 2015 (diff | hist) . . (+61) . . 2015 AMC 12A Problems/Problem 2
- 20:31, 4 February 2015
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**(+6,178)** . . 2015 AMC 12A Problems - 20:10, 4 February 2015
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**(+5,600)** . . 2015 AMC 12A Problems - 19:54, 4 February 2015 (diff | hist) . . (+208) . . 2015 AMC 10A Problems/Problem 24
- 19:53, 4 February 2015 (diff | hist) . . (+45) . . N 2015 AMC 12A Problems/Problem 19 (Redirected page to 2015 AMC 10A Problems/Problem 24) (current)
- 19:52, 4 February 2015 (diff | hist) . . (+211) . . 2015 AMC 10A Problems/Problem 22
- 19:52, 4 February 2015 (diff | hist) . . (+211) . . 2015 AMC 10A Problems/Problem 21
- 19:51, 4 February 2015 (diff | hist) . . (+45) . . N 2015 AMC 12A Problems/Problem 17 (Redirected page to 2015 AMC 10A Problems/Problem 22) (current)
- 19:49, 4 February 2015 (diff | hist) . . (+45) . . N 2015 AMC 12A Problems/Problem 16 (Redirected page to 2015 AMC 10A Problems/Problem 21) (current)
- 19:47, 4 February 2015 (diff | hist) . . (+211) . . 2015 AMC 10A Problems/Problem 11
- 19:47, 4 February 2015 (diff | hist) . . (+45) . . N 2015 AMC 12A Problems/Problem 8 (Redirected page to 2015 AMC 10A Problems/Problem 11) (current)
- 19:46, 4 February 2015 (diff | hist) . . (+44) . . N 2015 AMC 12A Problems/Problem 7 (Redirected page to 2015 AMC 10A Problems/Problem 9) (current)
- 19:46, 4 February 2015 (diff | hist) . . (+147) . . 2015 AMC 10A Problems/Problem 9
- 19:45, 4 February 2015 (diff | hist) . . (+147) . . 2015 AMC 10A Problems/Problem 8
- 19:44, 4 February 2015 (diff | hist) . . (+44) . . N 2015 AMC 12A Problems/Problem 6 (Redirected page to 2015 AMC 10A Problems/Problem 8) (current)
- 19:43, 4 February 2015 (diff | hist) . . (+147) . . 2015 AMC 10A Problems/Problem 6
- 19:43, 4 February 2015 (diff | hist) . . (+44) . . N 2015 AMC 12A Problems/Problem 4 (Redirected page to 2015 AMC 10A Problems/Problem 6) (current)
- 19:42, 4 February 2015
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**(-620)** . . 2015 AMC 12A Problems/Problem 3 (Redirected page to 2015 AMC 10A Problems/Problem 5) (current) - 19:41, 4 February 2015 (diff | hist) . . (+147) . . 2015 AMC 10A Problems/Problem 5
- 19:41, 4 February 2015 (diff | hist) . . (0) . . m 2015 AMC 10A Problems/Problem 1 (B to A)
- 19:40, 4 February 2015 (diff | hist) . . (+102) . . 2015 AMC 10A Problems/Problem 1
- 19:39, 4 February 2015 (diff | hist) . . (+58) . . 2015 AMC 10A Problems/Problem 1
- 19:38, 4 February 2015 (diff | hist) . . (-466) . . 2015 AMC 12A Problems/Problem 1 (redirect) (current)
- 00:09, 5 January 2014 (diff | hist) . . (+62) . . 2003 AMC 12B Problems/Problem 18
- 00:06, 5 January 2014 (diff | hist) . . (+137) . . 2003 AMC 10B Problems/Problem 19
- 00:05, 5 January 2014
(diff | hist) . .
**(-1,732)** . . 2003 AMC 12B Problems/Problem 16 (Redirected page to 2003 AMC 10B Problems/Problem 19) (current) - 00:03, 5 January 2014
(diff | hist) . .
**(+765)** . . 2003 AMC 12B Problems (→Problem 16) - 00:01, 5 January 2014 (diff | hist) . . (+169) . . 2003 AMC 10B Problems/Problem 23
- 00:01, 5 January 2014 (diff | hist) . . (-311) . . 2003 AMC 12B Problems/Problem 15 (Redirected page to 2003 AMC 10B Problems/Problem 23) (current)
- 00:00, 5 January 2014 (diff | hist) . . (+153) . . 2003 AMC 10B Problems/Problem 20
- 00:00, 5 January 2014 (diff | hist) . . (-299) . . 2003 AMC 12B Problems/Problem 14 (Redirected page to 2003 AMC 10B Problems/Problem 20) (current)
- 23:57, 4 January 2014 (diff | hist) . . (+230) . . 2003 AMC 12B Problems/Problem 12
- 23:56, 4 January 2014
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**(-564)** . . 2003 AMC 10B Problems/Problem 18 (Redirected page to 2003 AMC 12B Problems/Problem 12) (current) - 23:54, 4 January 2014
(diff | hist) . .
**(+651)** . . 2003 AMC 12B Problems/Problem 11 (current)

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