Last month 190 dogs at the clinic needed a treatment and 285 dogs did not need a tretment what percentage of the dog in the clinic needed treatment

Ben frank is an electrician who installs lighting fixtures. he charges (in dollars) his clients 15h+40f15h+40f where hh is the number of hours worked and ff is the number of fixtures installed. how much does ben frank charge when he works 77 hours and installs 99 fixtures?