Jess is trying to save $100. She saves money each week. The first week she saves $20.75 then she saves $22.50 and then she saves $26.65. How much more does she
need to save?

First of all add the money she saved in total and then subtract that from 100 to find the money remaining to save...

Thus, She need to save $30.1 more to complete her goal of 100...~

95.03 is the answer. hope this !