By the way this is not my work

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.

What is the range? can’t seem to find it out

Factor the expression using the gcf. the expression 21m−49n factored using the gcf