Answer:
She will make $54.375
Step-by-step explanation:
Here, we are interested in calculating the a total amount of money that was made by Rebecca given the number of hours she has babysat and her charges per hour.
Firstly, we need to get the total number of babysitting hours;
That would be 4.5 hours + 2.75 hours = 7.25 hours
Now to get the total amount charged = number of hours * amount per hour
= 7.25 * 7.5 = $54.375
