4 unit squares each have of their area shaded. 7 What is the total area that is shaded? square units​

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Step-by-step explanation:

4 square units

Step-by-step explanation:

There are 4 unit squares. They are all shaded.

Each unit square represent the number 1. 4 are shaded, so we multiply 4 by 1.

4 x 1 is equal to the number 4, so the answer is 4 square units.

I hope this helps you!

b

step-by-step explanation:

b

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