Janis earns $8 per hour at a part time job. how much does she earn working 3 hours 15 minutes

Jamie will earn $26. 8 * 3 = 24 This is the amount Jamie is paid for 3 hours of work. We still have the remaining 15 minutes to look at. 15 minutes is 1/4 of an hour. 1/4 of 8 is 2. So we add $2 to $24. This gives us a total of $26.

She earns 26 dollars.