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rjkz [21]
2 years ago
13

Rubi charges each family that she babysits a flat fee of $20 for the night

Mathematics
1 answer:
Zinaida [17]2 years ago
7 0

Answer:  7x + 20 = 90

Step-by-step explanation:

Let x be the number of children she babysat.

7x + 20 = 90

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