X is greater than or equal to -5 and less than 0

-5 ≤ x < 0

Step-by-step explanation:

Step 1: Convert word signs to math

greater than or equal to: ≤ x

less than: x <

Step 2: Substitute in numbers

-5 ≤ x < 0

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