Question: Janice bought five juices for $10 in total and two sandwiches for $6 in total. How much would she need to pay, if she would only buy one sandwich and one juice?
Answer: Janice bought five juices for $10, so one juice costs 10 / 5 = $2. She also bought two sandwiches for $6, so one sandwich costs 6 / 2 = $3. So for one juice and one sandwich, Janice would need to pay 2 + 3 = $5. The answer is 5.

Question: In a court-mandated traffic class, there are a certain number of drunk drivers and 3 less than 7 times that many speeders. If there are 45 students total, how many drunk drivers are there?
Answer: Let d be the number of drunk drivers and s be the number of speeders. We know that d + s = 45 and s = 7d - 3. Substituting the second equation into the first equation, we get d + 7d - 3 = 45. Combining like terms, we get 8d - 3 = 45. Adding 4 to both sides, we get 8d = 48. Dividing both sides by 8, we get d = 6. The answer is 6.

Question: To make room for a new inventory of books, Gordon's local bookstore is offering 30% off any book that is over $22.00 and 20% off any book under $20.00. He buys several books with the following prices; $25.00, $18.00, $21.00, $35.00, $12.00 and $10.00. How much will he spend on books?
Answer: He gets 30% off any book over $22 and he buys books that cost $25.00 and $35.00 so the total cost of these books is $25 + $35 = $60.00. At 30% off, the discount on these books is $60 * .30 = $18.00. That mean these 2 books will cost $60 - $18 = $42.00. He gets 20% off any book under $20 and he buys books for $18.00, $12.00 and $10.00 so these books together cost $18 + $12 + $10 = $40.00. at 20% off, the discount on these books is 40 * .20 = $8.00. So these 3 books will cost $40 - $8 = $32.00. He has spent $42.00 on the two most expensive books, $32.00 on the 3 cheapest books, and also bought a book for $21.00, so his total comes to $42 + $32 + $21 = $95.00. The answer is 95.

Question: Gerald spends $100 a month on baseball supplies. His season is 4 months long. He wants to use the months he's not playing baseball to save up by raking, shoveling, and mowing lawns. He charges $10 for each. How many chores does he need to average a month to save up for his supplies?
Answer:
He needs to save up $400 because 4 x 100 = 400. He has 8 months to earn this money because 12 - 4 = 8. He needs to earn $50 a month because 400 / 8 = 50. He needs to do 5 tasks a month because 50 / 10 = 5. The answer is 5.