What equation below represents the table of inverse variations A: y= 1/x

B: y = -1 • x

C: y = -1/x

D: y= 1 • x

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

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed