Final answer:
The promoters collected a total of $60,000 from the sale of 3,000 tickets at $20 each. This is a straightforward multiplication problem in mathematics. Option c) $60,000 is the correct answer.
Step-by-step explanation:
The question involves a simple multiplication problem to determine how much money the promoters have collected from selling concert tickets. To calculate the total money collected, you multiply the number of tickets sold by the price of each ticket. In this case, the promoters have sold 3,000 tickets, and each ticket costs $20.
Therefore, the total amount collected is given by the calculation: 3,000 tickets × $20 = $60,000. The correct answer is therefore: c) $60,000. This is a basic arithmetic problem that involves multiplying two numbers to find the total revenue from ticket sales.