Question: Tara is saving up to buy a new clarinet. She already has $10 saved. The clarinet costs $90. She plans to sell her old books to make the money. She sells each book of hers for $5. However, when she is halfway towards her goal, she loses all her savings and has to start over. How many books does she sell in total by the time she reaches her goal?
Answer with step-by-step thinking: Halfway towards her goal is $45 because 90 / 2 = 45. She sells $35 worth of books before she loses the money because 45 - 10 = 35. She sells 7 books before losing her money because 35 / 7 = 5. She then sells 18 books because 90 / 5 = 18. She sells 25 books in total because 18 + 7 = 25.
So the answer is 25.


Question: Melissa wants to make some dresses to sell at the upcoming festival. She has 56 square meters of fabric to make them. She knows that each dress takes 4 square meters of fabric and 3 hours to make. How many hours does she have to work?
Answer with step-by-step thinking: Each dress takes 4 square meters of fabric to make, so the number of dresses she can make will be 56 / 4 = 14 dresses. Each dress takes 3 hours to make, thus she will have to work 14 dresses x 3 hours / dress = 42 hours.
So the answer is 42.


Question: A club opens up and charges $20 to enter. James buys 2 rounds for his 5 friends. He also buys 6 drinks for himself. Drinks cost $6 each. He decides to eat some food so he orders some fried chicken which costs $14. He leaves a 30% tip on everything he orders. How much did he spend for the night?
Answer with step-by-step thinking:
He buys 2 * 5 = 10 drinks for his friends. So he orders 10 + 6 = 16 total drinks. The cost of the drinks was 16 * 6 = $96. So his order came out to 96 + 14 = $110. The tip came out to 110 * .3 = $33. So his order cost 110 + 33 = $143. Adding in the cover charge means it cost 143 + 20 = $163.
So the answer is 163.