It took David of an hour to bicycle
12 miles from his house to his friend's
house. He followed the same route home.
His average rate on the ride home was
3 mph faster than on his ride out. What
was David's average rate on the ride home?

Find the amplitude of a sinusoidal function that models this temperature variation

Plz hurry finals a paper cup in the shape of an inverted cone is 8 inches tall and has a radius of 1.5 inches. how much water can the cup hold? use 3.14 for pi. round the answer to the nearest tenth. a) 12.6 cubic in. b) 18.8 cubic in. c) 37.7 cubic in. d) 56.5 cubic in.

Cole says the distance between points (-5,0) and (0,-5)is 5 units. is he correct? explain why or why not.