Answer the following question.
Matt has 8 baseball cards worth $6 each. If he trades two of them to Jane in exchange for 3 $2 cards and 1 $9 card, how much profit does he make?
Step-by-step reasoning process: First find the value of the 2 cards Matt trades: $6 / card * 2 cards = $12. Then find the total value of the 3 $2 cards: 3 cards * $2 / card = $6. Then subtract the value of the cards Marcus gave up from the value of the cards he gained to find his profit: $9 + $6 - $12 = $3.
The answer is 3.

Answer the following question.
Polly the parakeet tweets all day long. When she is happy, she tweets 18 times per minute. When she is hungry, she tweets 4 times per minute. And when she watches herself in the mirror, she tweets 45 times per minute. During a time period where she is happy for 20 minutes, hungry for 20 minutes, and watches her reflection for 20 minutes, what is the total number of times she will tweet?
Step-by-step reasoning process: In 20 minutes, she happy tweets for 20 * 18 = 360 times. In 20 minutes, she hungry - tweets for 20 * 4 = 80 times. In 20 minutes, she tweets at her reflection 20 * 45 = 900 times. Altogether, she tweets 360 + 80 + 900 = 1340 times.
The answer is 1340.

Answer the following question.
Elsa and her sister watch an opera show every year at Central City Opera. Last year, opera seating cost $85 per ticket. This year, it costs $102. What is the percent increase in the cost of each ticket?
Step-by-step reasoning process: The ticket price increase is $102 - $85 = $17. So there is 17 / 85 x 100% = 20% increase of price.
The answer is 20.

Answer the following question.
Ayla has a customer care job whose primary role is to hear complaints from customers and advise them on the best way to solve their problems. She talks with each customer for a limited amount of time, and each phone call is charged five cents per minute. If each call lasts 1 hour, what's the phone bill at the end of the month if she manages to talk to 50 customers a week?
Step-by-step reasoning process: An hour has 60 minutes. If each call lasts an hour, the total amount of money charged is 60 * .05 = $3 for 1 customer. When she talks to 50 clients in a week, the total amount of money charged is 50 * 3 = $150. In a month of 4 weeks, the phone bill is 150 * 4 = $600.
The answer is 600.