cortezellie123 cortezellie123 20-10-2022 Mathematics contestada Brian decided to start a dog-walking service. He's going to charge each dog owner $4.50 to walk one dog and $6.75 to walk two dogs. Approximately how much will he earn if he walks 13 single dogs and 9 sets of two dogs? $55.00 $100.00 $128.00 $75.00