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<h3>Answer:</h3><h3>commutative property of multiplication</h3><h3>The property used in the statement is the commutative property of multiplication.</h3>
Answer:

Step-by-step explanation:
The rate of change (slope) is 1 which is more than function 2 and less than function 1
The average height of the fence is 2 m; its length is 20π m. So, its 2-sided area is
A = 2*(2 m)*(20π m) = 80π m² ≈ 251 m²
At 1 L/(100 m²), it will take 2.51 L of paint to paint both sides.