A formual for 8 bottles of window cleaner calls for 6 cups of rubbing to customers alcohol 2 1/4 gallons of water and 1 1/2 cups of ammonia alcohol would the forula call if a factory made 1,280 bottles for stores to sell to customers

960 cups of alcohol (or 60 gallons)

360 gallons of water

240 cups of ammonia (or 15 gallons)

Take total and divide by 8, so 1280 divide by 8 is 160. now multiply each amount by 160. * (remember there are 16 cups in a gallon. So you dived total amount of cups by 16 to convert it to gallons)