11. If y varies directly as x and y = 12 when x = 4, find y when x = 12 А.3 В.4 С. 36 D. 48 12. What is the simplified answer for ( 2x* y' z)3? А. 1/ 2x' у" z В. 1/ 2х у' z 13. If y varies inversely as x and 3 when x = 8, find k. 5 12 9 12 9 2 D. 1/ 8x*y' z? А. 8 14. If y varies inversely as x and 3 when x = 8, find y when x = 4. В. 16 C.24 D. 32 В. 6 15. What is the product of 4 and A. 7 С.5 D.4 -2 ? А. -8 В. 8 С. -6 D. 6

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