Identify the percent of change is an increase or decrease. then find the percent of change. round to the nearest tenth of the percent as necessary. 50 pounds to 35 pounds

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