Human: Tom gets 4 car washes a month. If each car wash costs $15 how much does he pay in a year? Assistant: 
How many car washes does Tom get in a year? ** He gets 4*12=<<4*12=48>>48 car washes a year
How much does Tom pay in a year? ** That means it cost 48*15=$<<48*15=720>>720
#### 720