satisfying the following two conditions for all 
:![\[ f(x+y)=f(x)+f(y), \;\;\; f \left( \max \{x, y \} \right) = \max \left\{ f(x),f(y) \right\}. \]](http://latex.artofproblemsolving.com/3/9/1/391164166941b57fe54bde43b1f3ef3b49494180.png)
and 
.
.
,
.
-
is a finite sequence of positive integers 
,
;
,
.
-
;
;
;
.
is a finite sequence of positive integers 
such that:
;
;
each 
is in the sequence 
defined by 
,
,
;
if 
,
is a subsequence. For example, there are five 
;
;
;
.
the number of type 
Y by Adventure10, Mango247
A rock got stuck in the tread of my tire and when I was driving 45 miles per hour, the rock came loose
and hit the inside of the wheel well of the car. How fast, in miles per hour, was the rock traveling
when it came out of the tread? (The tire has a diameter of 26 inches.)
I have been trying to figure this out for about 3 hours now and I know I am making some small mistake, but cannot seem to figure out what it is.
and hit the inside of the wheel well of the car. How fast, in miles per hour, was the rock traveling
when it came out of the tread? (The tire has a diameter of 26 inches.)
I have been trying to figure this out for about 3 hours now and I know I am making some small mistake, but cannot seem to figure out what it is.
