Question

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Answer 1

Perimeter of the Rectangle is 2×(length+breadth)

→2{(3y-2)+(5y+8)}=2{3y-2+5y+8}=2{8y+6}=16y+12

(16y+12) is the right answer.

Answer 2

180 (and then whatever the units of measure are)

to find the perimeter you have to add all four sides together to get your total. (3y+2)+(3y+2)+(5y+8)+(5y+8)

y=180