At a store, a basketball has been discounted 20% off the regular price. The sale is $15 .What was the original price of the basketball? Show your work and explain your answer.

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

`if you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain. ''.

Michael gose to a theme park and rides two different roller coasters that both begin on a raised platform his height while on the first roller coaster measured in feet from the platform height can be modeled by the following graph where t is the number of seconds since the ride began