Make x the subject of the formula

x/2c = a + 4

Kevin has just finished paying off his loan. he was assessed a service charge of $422. he paid off the principal and the interest by making weekly payments of $36.13 for four years. if the principal was $7,150, how much did kevin pay in finance charges, to the nearest dollar? a. $498 b. $365 c. $422 d. $787

Write an equation for the function that includes the points (2,100)and (3,100)

Solve the equation by completing the square. x^2+2x=17