For the figures below, assume they are made of semicircles, quarter circles and squares. For each shape, find the area and perimeter of each shaded part. Give your answer as a completely simplified exact value in terms of π (no approximations).

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax