Which of the following is a step in simplifying the expression ?

check the picture below.

(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).

hope i

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

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