A convenience store sells 180  gallons of soda a week.  They buy syrup boxes that can make 30 gallons of soda, and each box costs $40.  How much do they pay for syrup a week?
How many boxes do they need to buy? ** They need to buy 180/30=<<180/30=6>>6 boxes
How much do they pay for syrup a week? ** So the cost is 6*40=$<<6*40=240>>240
#### 240