rani is a real estate agent. for each house she sells, she pays \$100$100dollar sign, 100 in fees, but earns a commission of 1.8\%1.8%1, point, 8, percent of the selling price of the house. rani's total profit from a particular house is \$4{,}580$4,580dollar sign, 4, comma, 580. if ppp represents the selling price of the house, which equation best models the situation?