Question 706484
Let 'l' be the length and 'w' be the width of the rectangle.
Area of the rectangle = l*w
Given : l = w +5

Therefore Area = l * w  = (w + 5) * w = {{{w^2 +5w}}} sq. in

When width  = 8 inches ,
Area = {{{8^2 + 5*8}}} = 104 sq.in