Plss help with this question I got 10 is that right?

Aswimming pool is a rectangle with semicircles on the end. the rectangle is 12 meters wide and 30 meters long. the diameter and width of the swimming pool are equal. sketch and label an overhead diagram of the swimming pool. find the area of the swimming pool floor.

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

Two numbers have a sum of -19. one number is x. what expression represents the other number?