Find r. R + 5.6 = 10.8

Aformual 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

Pat listed all the numbers that have 15 as a multiple write the numbers in pats list

Ineed to know the answer to this algebra question.