813-64 r²+r-8 factoring by grouping
how do i solve

What is the range of the data below? .8090100

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.

True or false look at the picture pls : /