Acustomer buys a cd for $15 and a video game. the customer pays a total of $42.80 for the two items, which includes 7% sales tax. which equation can be used to find x, the cost of the video game before tax?

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).