Circumference of a circle= 2*pi*r

Perimeter of a square=4*s. S represents the length of each side of the square.

2*pi*r+ 4s= 40

Total area of the circle and square= pi*r^2+s^2

Express s in terms of r.

40-2*pi*r/4=10-(pi*r)/(2)

Total area of the circle and square in terms of r:

pi*r^2+(10-(pi*r)/(2))^(2)

E should be your answer.