Answer:
Bill $306 in 18 hours.
Explanation:
First we want to figure out the unit rate, or how much he makes in 1 hour.
So we do 204 รท 12. Which equals 17. So that means bill makes $17 every hour.
If we are trying to figure out how much he makes in 18 hours, we just need to do 18 * 17, which equals 306.