Question

Please help
much appreciated ​

Answer 1

P = 2x + 2y + 8

Explanation:

The perimeter (P) of a rectangle is calculated as

P = 2(l + w) ← l is length and w is width , then

P = 2(x + 5 + y - 1) ← distribute parenthesis

= 2x + 10 + 2y - 2 ← collect like terms

= 2x + 2y + 8