Ben is going for a walk, he walks 3.5 miles in 90 minutes. What is his speed?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

Which of the following is an example of conditional probability

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