This is $7.50 worth of quarters.
I went to the car wash and tried to give the machine a $10 bill. It wouldn’t take it, so I went to the change machine. It kept spewing out quarters, but I didn’t count because math sucks.
I washed my car for 17 minutes at $0.25 a minute, for a total of $8.50.
Then I vacuumed it for 4 minutes for $1.
Then I counted the quarters I have left, because I hate quarters. I have $7.50 in quarters left over.
Evidently the change machine gave me $17 change for a $10 bill. Meaning I practically got to wash my car for free.
I need to withdraw my entire savings in denominations of $10 bills and feed them to this magical machine.