Answer:

Step-by-step explanation:
a) Firstly, we start by assigning variables
Let the number of people who paid $14 for the reserved seats be r while the number of people who paid for general admission be g
The total number of tickets is 36,000
Thus:

For the reserved seats, the total amount paid will be:

For the general seat, the total amount paid will be:

Now, the total sum paid would be:

This simply means we have two sets of equations as follows:

From equation i:

Substitute this into equation ii as follows:

Recall:

This means that 11,000 people paid for $14 reserved seats while 25,000 people paid for $6 general seats
b) We want to get the receipts total if 23,500 paid for $6 tickets and 12,421 paid for $14 tickets
Mathematically, we have that as:
