In order to see the formulas that you used in a spreadsheet, but doesn't want to see the results of the formulas, then just click on Show Formulas. That can be done by clicking the cell and click, show formula. Letter A.
Answer:
31
Step-by-step explanation:

15% - 40. -25 = 1500 percent take out the zero because they have zero value and your left with 15 which is 15%
He would earn $30 for 45 minutes.
Example:
60min=$40/hr
1min =$40/$60/hr
45min=$40/$60*45
$30 for 45min