Brian has 66 water bottles for the 5k race participants. in addition, he is planning to buy some boxes of water bottles that have 18 water bottles each all of the boxes cost the same. Brian is not sure yet about the number of water bottles he wants to buy, but he has enough money to buy up to 5 of them. write a function to describe how many water bottles brian can buy. let x represents the number of voices of water bottles brian buys find a reasonable domain and range.