a department store has sold 3/5 of their formal dresses, but 10 were returned. Now the store has 62 formal dresses. how many were there originally

Tony is charged $ 50 and additional $0.15 per miles for renting a car. a) represent the cost of renting a car with an equation,and the determine the cost if he drove it70 miles.b) what would be the cost of a car rental if the car was driven 250 miles? show work