2010 AMC 8 Answer Key

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1. $\textbf{(C)}\ 28$

2. $\textbf{(D)}\ \dfrac{10}{3}$

3. $\textbf{(C)}\ 70$

4. $\textbf{(C)}\ 7.5$

5. $\textbf{(B)}\ 34$

6. $\textbf{(E)}\ \text{square}$

7. $\textbf{(B)}\ 10$

8. $\textbf{(D)}\ 15$

9. $\textbf{(D)}\ 84$

10. $\textbf{(B)}\ \frac{2}{3}$

11. $\textbf{(B)}\ 64$

12. $\textbf{(D)}\ 100$

13. $\textbf{(E)}\ 11$

14. $\textbf{(C)}\ 77$

15. $\textbf{(C)}\ 42$

16. $\textbf{(B)}\ \sqrt{\pi}$

17. $\textbf{(D)}\ \frac{2}{3}$

18. $\textbf{(C)}\ 6:\pi$

19. $\textbf{(C)}\ 64\pi$

20. $\textbf{(A)}\ 3$

21. $\textbf{(C)}\ 240$

22. $\textbf{(E)}\ 8$

23. $\textbf{(B)}\ \frac{1}{2}$

24. $\textbf{(A)}\ 2^{24}<10^8<5^{12}$

25. $\textbf{(E)}\ 24$