Final answer:
The expression for the number of tickets sold at $10 each is $10x. To calculate the total amount collected from the sale of 500 tickets at $10 each, one would multiply 500 by $10 to get $5000, assuming all tickets were sold at this price.
Step-by-step explanation:
To answer part (a), the expression for the number of tickets sold at $10 each would be simply $10x, where x represents the number of tickets sold. For part (b), to calculate the total amount of money collected from the sale of 500 tickets, we need to consider the total revenue from tickets sold at different prices. Let's assume that apart from the tickets sold at $10 each, the remaining tickets were sold at another price. However, since the question does not specify the price of the remaining tickets, we'll only calculate the earnings from the $10 tickets.
The total amount collected from x tickets sold at $10 each is $10x. If all 500 tickets were sold at $10, then the total amount collected would be 500 tickets × $10 per ticket, which equals $5000. If a different number of tickets were sold at other prices, the total revenue would be a combination of the two amounts, but this detail is missing from the question.