Solve the following equation by combining like terms first: 3x + 3 - x + 4 = 21

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10

Can someone answer this question for me

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