What is the sum of the exterior angles of polygon QRST? 360°

90°

180°

540°

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?