ANSWER:
[tex]T=530N+650[/tex]STEP-BY-STEP EXPLANATION:
We have the following functions given by the statement:
[tex]\begin{gathered} A=145N+650 \\ \\ B=385N \end{gathered}[/tex]The functions A and B are a function of N, the function T which is the total, which is the sum of the functions A and B, therefore, it would look like this:
[tex]\begin{gathered} T=A+B \\ \\ T=145N+650+385N \\ \\ T=530N+650 \end{gathered}[/tex]