First, we should figure out how much money Tia makes from babysitting, and then we should subtract how much Tia borrowed from her friend to find out how much money Tia will have left after paying back her friend.
To figure out how much money Tia made babysitting, we must multiply how many dollars she makes per hour (15) by the number of hours she babysits (3).
15 x 3 = $45
Now, we should subtract how much money Tia borrowed from her friend.
$45 - $4.55 = $40.45
Therefore, Tia will have $40.45 left after she pays back her friend.
Hope this helps!