Frank's laundry detergent is double concentrated and will wash 80 loads of laundry.  His detergent is usually $25.00 a bottle but they're having a sale.  If he buys 2 bottles, both bottles will drop to $20.00 a bottle.  How much does he spend, in cents, per load of laundry, if he buys 2 bottles of detergent?
If he buys 2 bottles, the price drops to $20.00 per bottle so they cost 2*20 = $<T>multiply(2, 20)=40
He can get 80 loads of laundry per bottle and he bought 2 bottles so that's 80*2 = <T>multiply(80, 2)=160 loads of laundry
The detergent cost $40.00 and he will be able to wash 160 loads of laundry so each load costs 40/160 = $<T>divide(40, 160)=0.25
