All the tickets in the reserved section have been sold. Total revenue from ticket sales will depend on the number of general-seating tickets sold.

Write a function rule to represent the revenue from the reserved section and an unknown amount of tickets from the general section.

Use G as the variable for number of general section tickets and use r for the possible revenue.

The revenue from the reserved section will be a fixed amount, since all the tickets in that section have been sold. Let's say the revenue from the reserved section is $R.

The revenue from the general section will depend on the number of general section tickets sold, which is represented by the variable G. Let's say the price of each general section ticket is $P.

Therefore, the revenue from the general section, G, can be calculated using the formula:
Revenue from general section = Number of general section tickets (G) * Price per ticket (P)

To find the total revenue, r, from the reserved section and the general section, we can add the revenue from the reserved section ($R) to the revenue from the general section.

So the function rule to represent the revenue, r, can be written as:
r = R + (G * P)