Answer:
C. 11x^2 is a monomial
Step-by-step explanation:
11x^2 is a monomial because it contains one term.
11x² is monomial because it has only one term
9/x is not because power of x should be always whole number.
Let the volume, as a function of time t, be v:
v(t) = 5 + 2t
The mathematical model is v(t) = 5 + 2t