Which linear equation has no solutions? O A. 7x+x+4 = 2 (4x + 2)
B. 3 (3x + 1) = 8x+x
O C. 10x + 8 = 5x + 8
D. 5x + 15 = x - x

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.