Which ratio is equivalent to 4:5?
10
15
4
10
O O
16
20
15

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).

What are the exclude value of mn+3m

Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points