The manufacturer of banjo spends $250 to make each banjo and sells them for 400 and the manufacturer also has fixed cost of each month of $4500 find the revenue function or when expansions are manufactured
[tex]\begin{gathered} x=\text{ number of banjos} \\ R(x)=400x-250x-4500 \\ R(x)=150x-4500 \\ \text{The revenue function is }R(x)=150x-4500 \end{gathered}[/tex]