Sarah is playing tic-tac-toe. She wins $1 for every game she wins, $0 for every game she ties, and she loses $2 for every game she loses. If she played 100 games where she tied 40 of them, and she lost $30, how many games did she win? Give the rationale and then the answer.
Let's think step by step. She either won or lost 60 games because 100 - 40 = 60. We know that 1(60 - Losses) - 2(Losses) =  - 30 because she lost $30. Therefore 60 - Losses - 2 Losses =  - 30. Therefore - 3 Losses =  - 90. Therefore, Losses = 30.. The answer is: 30.

Jeremie wants to go to an amusement park with 3 friends at the end of summer. Tickets are $18 for children and a set of snack cost $5. How much will it cost Jeremie and her 3 friends to go to the amusement park and buy each of them a set of snacks? Give the rationale and then the answer.
Let's think step by step. There are 1 + 3 = 4 of them who will go to the park. The ticket and a set of snack cost $18 + $5 = $23. So, it will cost Jerimee and her 3 friends $23 x 4 = $92.. The answer is: 92.

Lorenzo put three full cans of thumbtacks into his pocket and went off to work at the corkboard factory. It was Lorenzo's job, as head of quality control, to test every cork board for its ability to hold thumbtacks. He placed one thumbtack from each of the three cans of thumbtacks into every board tested. At the end of the day, he had tested 120 boards and had 30 tacks remaining in each of the three cans. What was the total combined number of thumbtacks from the three full cans? Give the rationale and then the answer.
Let's think step by step. At the end of the day, he had tested 120 boards, each with three tacks, for a total of 3 * 120 = 360 tacks. He had 30 tacks remaining in each of the three cans, for an additional 3 * 30 = 90 thumbs tacks. Therefore, the original total combined number of thumbtacks in the three full cans of thumbtacks was 360 + 90 = 450 thumbtacks.. The answer is: 450.