Gabby baby sat 2 hours each night for 20 nights. She earned a total of $360 babysitting. Gabby wants to calculate her hourly rate. How much did Gabby earn per hour babysitting?

$9 per hour

Step-by-step explanation:

First, divide her total by 20 to find how much she got per night:

360/20

= 18

Then, divide this by 2 to find her hourly rate, since she worked 2 hours a night:

18/2

= 9

So, Gabby earned $9 per hour babysitting

 $9

Step-by-step explanation:

2 × 20 = 40         [total running time]

360 ÷ 40 = 9       [Gabby earns per hour babysitting]