April spent 20$ buying 2 types of ribbon at the craft store. Solid-colored cotton ribbon cost $0.75 per yard, while patterned silk ribbon cost $2.00 per yard What equation represents the different amount of cotton ribbon,x,and silk ribbon, y, that April can buy.

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Step-by-step explanation:

The pentagon has 5 interior angles that add up to 360. To find the angle of rotational symmetry, divide 360 by 5 (you get 72). So if you rotated the shape 72 degrees, it will map onto itself. 72 times 2 is 144, and that's rotating the shape 72 degrees twice, so it will stay the same.