Lyla buys a fish tank that has the dimensions b by b? by 4 What is the volume of her new fish tank?

Since calculating volume is multiplying the side lengths together we first have:

b x b x 4

Then we can simplify b x b to b ²

And when you multiply b² by 4 you get 4b²

4b² is the volume of the fish tank.

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step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)