Suppose y varies directly with x. When a direct vacation equation that relates x and y
Y=7 1/2 when x=3

A. Y= 2/3x
B. Y=2/3x
C. y=5/2x
D. Y=2/5x

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2