Which word describes the four angles formed by intersection of two perpendicular lines​

Jasmine wants to eat at 8: 00pm her meal takes 65mins to cook what time does she need to put the meal in the oven

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

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).