Leopold's grandfather put $1,500 in the bank for him when he was born. The account has been earning 4.5% interest, compounded monthly. Leopold is now 16 years old and wants to take out the money so he can buy a car.

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

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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)