Answer:
C. 140
Explanation:
Given f(n) and g(n) defined below:
[tex]\begin{gathered} f\mleft(n\mright)=n+3 \\ g\mleft(n\mright)=n^2+4 \end{gathered}[/tex]First, evaaluate f(4) and g(4):
[tex]\begin{gathered} f\mleft(4\mright)=4+3=7 \\ g\mleft(4\mright)=4^2+4=16+4=20 \end{gathered}[/tex]Therefore:
[tex]\begin{gathered} f(4)\cdot g(4)=7\times20 \\ =140 \end{gathered}[/tex]The correct choice is C.
