Question

Which of these expressions is a monomial?
A. 6a
B.8a^2b+9abc+4a^3b^2-2ac
C.5a+2b
D.3a-ab+7bc

Answer 1

A monomial is any number by itself (67, x, 21.3, etc.).

Therefore, the correct answer is:
A. 6a

Hope this helps.