Rosalie earns extra money by working as a babysitter over the weekend. she charges $10 to drive to the home and an additional $8 per hour. what are the imputs

Im so bad at fractions they are not my best math thing to work on

Which statement is true about the extreme value of the given quadratic equation? a. the equation has a maximum value with a y-coordinate of -21. b. the equation has a maximum value with a y-coordinate of -27. c. the equation has a minimum value with a y-coordinate of -21. d. the equation has a minimum value with a y-coordinate of -27.

I'm stumped by this question. someone with my math homework