Question

Picture attached below, and it's not a rectangle. It's a pentagonsolve a and b

Answer 1

a)

The perimeter is given by

$2x+3+4x+5+3x+15+40$

b)

Then we simplify by summing similar terms we obtain that the expression of the perimeter is

$(2x+4x+3x)+(3+5+15+40)$$9x+63$