The width of a rectangle varies inversely with its length. if the width is 4 when the length is 18, find the width when the length is 8.

Find two rational expressions that have the difference of 2-n/n-4

What is the first step of an indirect proof of a number that is divisible by two

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?