Q: Sam earns $10 an hour on Math tutoring. For the first month, he earned $200; and for the second month, he earned $150 more than the first month. How many hours did he spend on tutoring for two months?
A: For the second month, Sam earned $200 + $150 = $350. So, he earned a total of $200 + $350 = $550 for the first two months. Therefore, he spent $550 / $10 = 55 hours on math tutoring for the first two months. The answer is 55.
Question: Jerry wakes up one morning and finds the thermostat set to 40 degrees. He set it to double the initial temperature. His dad notices, yells at Jerry, and reducing the temperature by 30 degrees. Later, Jerry's mother reduces the temperature by 30%, before his sister increases it by 24 degrees. What's the final temperature?
Answer: First double the initial temperature: 40 degrees * 2 = 80 degrees. Then reduce that amount by 30 to reflect the dad's change: 80 degrees - 30 degrees = 50 degrees. Then multiply that number by 30% to find how much Jerry's mother reduces the temperature: 50 degrees * .3 = 15 degrees. Now subtract 15 degrees from 50 degrees to find the temperature after the mother's change: 50 degrees - 15 degrees = 35 degrees. Finally, add 24 degrees to find the final temperature: 35 degrees + 24 degrees = 59 degrees. The answer is 59.
[Question]Bill gets paid $20 every hour he works up to a total of 40 hours, after which he gets paid double that amount per hour. How much does Bill get paid for a 50-hour workweek?
[Answer]Bill makes $20 an hour for the first 40 hours, meaning he gets paid 40 * 20 = 800 dollars. For the remaining 10 hours, Bill gets paid double the amount of $20, meaning he makes 20 * 2 = 40 dollars an hour. Since he worked 10 hours at that $40 an hour rate, that means he gets paid 10 * 40 = 400 dollars for the final 10 hours. In total, this means Bill gets paid 800 + 400 = 1200 dollars for his workweek. The answer is 1200.
Q: In Sam's collection, there are ten more black pens than blue pens and twice as many blue pens as pencils. There are also eight pencils and two fewer red pens than pencils. How many pens in all are there in Sam's collection?
A: 8 x 2 = 16 are blue pens. 16 + 10 = 26 are black pens. 8 - 2 = 6 are red pens. Therefore, there are 16 + 26 + 6 = 48 pens in all in Sam's collection. The answer is 48.
Question: Remi prepared a tomato nursery and planted tomato seedlings. After 20 days, the seedlings were ready to be transferred. On the first day, he planted 200 seedlings on the farm. On the second day, while working alongside his father, he planted twice the number of seedlings he planted on the first day. If the total number of seedlings transferred to the farm on these two days was 1200, how many seedlings did his father plant?
Answer: On the second day, he planted 2 * 200 seedlings = 400 seedlings. The total number of seedlings Remi planted on the two days is 400 seedlings + 200 seedlings = 600 seedlings. If the total number of seedlings transferred from the nursery was 1200 after the second day, Remi's father planted 1200 seedlings - 600 seedlings = 600 seedlings. The answer is 600.
Q: A laboratory has 22 beakers of liquid in a fume hood, and 8 of the beakers have copper ions in them. Adding three drops of a solution will turn the liquid in a beaker blue if there are copper ions present. If the beakers are tested one by one for copper ions and 45 drops are used before all 8 beakers with copper ions are found, how many beakers without copper ions were tested?
A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
There were 45 / 3 = 15 beakers tested to find all the beakers with copper ions. Thus, 15 - 8 = 7 beakers without copper ions were tested. The answer is 7.