The answer is a, it adds one block
18% of 40 is 7.2
Change the percentage (18%) into a decimal by dividing it over 100:
18/100 = 0.18
Divide 7.2 by the decimal (0.18):
7.2 / 0.18 = 40
Answer:
Step-by-step explanation:
<u>Area of the top section:</u>
- A₁ = x*(x - x + 3) = x*3 = 3x in²
<u>Area of the bottom section:</u>
- A₂ = (x + 4)(x - 3) = x² + x - 12 in²
<u>Total area:</u>
- A = A₁ + A₂ =
- (3x) + (x² + x - 12) in²
Correct choices are C and D
Convert mixed numbers to improper fractions:

