Kevin is a teaching assistant at a local community college. A tutor at the college works the same number of hours as kevin but earns 10,700 less annually. The sum of kevin’s annual salary and the turor’s annual salary is $65000. How much does each earn?

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.