12. lydia is painting flower vases. each vase takes 3⁄16 of a quart of paint. she has 21⁄2 quarts of paint. how many flower vases can she paint? a. 131⁄3 b. 3111⁄16 c. 151⁄6 d. 101⁄2

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.