To find the equation for the total charge Maria makes for babysitting, we need to consider both her base fee and her hourly rate.
Maria charges a $10 base fee, and she charges $15 for each hour of babysitting. If we let \( h \) represent the number of hours she babysits, the total charge can be represented with the following equation:
Total charge = Base fee + (Hourly rate × Number of hours) Total charge = 10 + 15h
We want to find the number of hours \( h \) that makes the total charge $160. Therefore, we set up the equation:
10 + 15h = 160
This corresponds to option D:
D. 10 + 15h = 160