Write a unit rate for 53 pages in 2 hours

The quadratic function h(t) = -16.1t^2 + 150 models a balls height, in feet, over time, in seconds, after its dropped from a 15 story building. from what height in feet was the ball dropped?

How can you tell when x and y are not directly proportional?

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.