Step-by-step explanation:
-3(-x -3y) = 3( x +3y) = 3x+9y

Since the population is going to increase by a certain percentage, we have to add
to the percentage to keep the original population.

Now, convert the percentage into a decimal. You can do this by moving the decimal place two places to the left.

Now, just multiply that by
.

Its C)126in I think because top base is 16, bottom base is 12 and the height is 9.
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