B. For item numbers 14-15. Study the algebraic expression or equation in each number and answer the given question that follow. Box the letter of the correct answer.
14. In 7m + 6 = 0, which is the constant?
A. 7
C.6
D.0
B. m
15. In 9xm = 0, which is the variable ?
A. 9
Bm
C =
D.O​