<h3>
Answer: 2475</h3>
Explanation:
You can compute the answer like this
3*825 = 2475
or you could say
825+825+825 = 2475
This is because each of the three shows sold 825 tickets. Repeated addition is the same as multiplication.
Step-by-step explanation:

For number 1, add the sides of the triangle. They are all given. The answer is 19.
For number 2, you use the formula for circumference, 2 times pi times radius. The answer is 43.96.
For number 3, I assume that 5 is half of one side. You would double 5 to get ten and multiply it by four, since there are four sides in a square. The answer is 40.
For number 4, you would multiply 5 times pi, but don't solve it. ( since the directions are to leave the answer in terms of pi) The answer is 5 pi.
For number 5, add all the sides together like number 1. The answer is 18.
5.50 divided by 10 gives you 55. There will be 55 dimes in $5.50 :)