Objective is to complete as many curl-ups as possible up to a maximum of 75 at a specified pace. ... When performing the curl up students need to get their backs up off the mat far enough so that their fingertips cross the measuring strip.
Your answer would be, I believe, Billion gallons per day, Because, the independent quantity is time in days, and the dependent quantity is volume of water in billions. (Flow Rate: 84,760 Cubic Feet Per Second.).
Hope that helps!!!!! Have a great day : )
Your answer is C.........