A pitcher throws a baseball 90 miles per hour. Convert this speed into feet per second.

1/3(x-10)=-4 solve for x with steps

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).