Answer:b
we start with 24 but as we get to the first minute we have already lost 3 gallons and so on.
The answer you are looking for is associative property of addition.
In associative property, no matter where the parenthesis are, a + (b + c) is going to be equal to (a + b) + c. Since the parenthesis follow the equation a + (b + c) = (a + b) + c, you can assume you are using the associative property. Lastly, add "of addition" to associative property, since you are using addition, not multiplication.
I hope this helps!
A. The area must be 1/2 x^2, so x must be 7.3. (7.3^2=53.29), 53.29/2=26.645.
