Answer: $112.80
Explanation:
As the month has 24 working days and Deprina buys a coffee every Day she goes to work, she Will spent $4.70 24 times.
This way, all we have to do to find out how much she Will spend is multiply 4.70 by 24:
$4.70 * 24 = $112.80
The coffee generates a amount of $112.80 per month for Deprina.