Please help! This is my last test for the year and I wanna do good. Just solve number 12 ignore 13! I will mark brainliest asap!!

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

the answer is su.k.my? ? co.kc

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

you can download it here

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step-by-step explanation: