Darren got 42 out of the 56 questions correct on a test. What percent of the questions did he get correct? OA. 28% OB. 84% OC. 75% OD 42%​

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

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