What percent of a foot is 3 in.; 4 in.; 6 in.; 9 in.?

25%, 33.3%, 50% 75%

Step-by-step explanation:

3÷12= .25 = 25%

4÷12= .333= 33.3%

6÷12 = .5= 50%

9÷12= .75= 75%

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