Hi Katelynn,
If you want to make a total $100 dollars for the week, we need to add what you will get from your income sources of gas and babysitting:
Total= (money paid for babysitting + (money paid for gas)
$100=7(h)+25. Here, we can create an inequality by using the letter h to represent the number of hours you work for the week.
Best,
Starlyte