Connor ate 1/4 of an apple orlando ate 1/4 of the same apple how much of the apple did connor and orlando eat in all

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists

Asap! i'm not good math and i'm lost.

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?