Need for eight a & b! the answer is 26, i'm just unsure on how to do it.

7.

a.
5×8=40

5+3=8
8+9=17

8×17=136

40/136 = 0.29

29%

This answer is correct because you divide the area of the patio by the area of all and it gives you the percent taken by the patio.Hope it help.

b. is to find the perimeter

6(2x + 5y)6 (2x) = 12x6 (5y) = 30y12x + 30y

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