Two quantities, x and y, are directly proportional. If you take a third of x, what happens to y?

Which of these choices show a pair of equivalent expressions?

Find the height of a square pyramid that has the volume of 32 ft.³ and a base lengthof 4 feet

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =