Choose the answer based on the most efficient method as presented in the lesson. if the first step in the solution of the equation -9 + x = 5x - 7 is "subtract x," then what should the next step be?

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

congruent segments

step-by-step explanation:

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answer is  

a.

16.1

hope you got it chief.