###Human: Jackson wants to go on a shopping spree, so his mom says she will give him some spending money if he does extra chores. She promises $5 per hour spent on chores.  Jackson spends 2 hours vacuuming, and decides to do this twice. He also spends 0.5 hours washing dishes, and three times as long cleaning the bathroom.  How much spending money has Jackson earned?, ### Assistant: Jackson spent a total of 2 * 2 = 4 hours vacuuming.
This means he earned 4 * $5 = 20 dollars from vacuuming.
He earned 0.5 * $5 = 2.5 dollars from washing dishes.
Cleaning the bathroom took three times as long as the dishes, so he spent 0.5 * 3 = 1.5 hours in the bathroom.
This means he earned 1.5 * $5 = $7.5 from cleaning the bathroom.
In total, he has earned $20 + $2.5 + $7.5 = $30. 
 So the answer is :  30