List 3 decimals values less than 9 but greater than 8

Rationalize the denominator- 12x/√x-10

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

Can someone me find the original price? the discount is 5% and the sale price is $68.40