Which ratio is equivalent to 18/36?
1/3, 1/2, 9/16, or 6/7?

The diameter of a ball is 8 in. what is the volume of the ball? use 3.14 for pi. enter your answer as a decimal in the box. round only your final answer to the nearest hundredth.

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.

Which best describes the function on the graph? direct variation; k = −2 direct variation; k = -1/2 inverse variation; k = −2 inverse variation; k = -1/2