Solve the Problem $$P(x)=x^{3}-22 x^{2}+121 x$$ Where $x$ Is Time in Years from the Date of the First

Multiple Choice

Solve the problem.
-Suppose that the change in pressure of the oil in a reservoir can be approximated by:
$$P(x) =x^{3}-22 x^{2}+121 x$$
Where $x$ is time in years from the date of the first reading. Find $P(7)$ .

A) 115
B) 118
C) 122
D) 112