Q: Tomas is hoping to run a marathon next year, which is 26.3 miles. He knows that each month he trains, he can run twice as far as the month before. If he can run 3 miles during the first month of training, how many total months before the marathon should he start training to ensure he can run far enough?
A: In the first month he can run 3 miles. In the second month he can run 6 miles because 3 x 2 = 6. In the third month he can run 12 miles because 6 x 2 = 12. In fourth month he can run 24 miles because 12 x 2 = 24. In fifth month he can run 48 miles because 24 x 2 = 48. He needs to start training 5 months ahead of time because 24 < 26.3 and 48>26.3. The answer is 5.

Q: Emily goes fishing and has a very busy day. She catches 4 trout, 3 catfish, and 5 bluegills. If the trout weigh 2 pounds each, the catfish weigh 1.5 pounds each, and the bluegills weigh 2.5 pounds each, how many total pounds of fish did she catch?
A: She caught 8 pounds of catfish because 4 x 2 = 8. She caught 4.5 pounds of catfish because 3 x 1.5 = 4.5. She caught 7.5 pounds of bluegill because 5 x 2.5 = 12.5. She caught 20 pounds of fish because 8 + 4.5 + 12.5 = 25. The answer is 25.

Q: Nigel won $45 but gave some away. His mother gave him $80 more. If now Nigel has $10 more than twice the amount he originally had, how much money did he give away?
A:
Twice the amount Nigel originally had is 2 * 45 = 90 dollars. Now, Nigel has 10 dollars more, meaning that he has 10 + 90 = 100 dollars. Before his mother gave him 80 dollars, he had been left with 100 - 80 = 20 dollars. This means that Nigel gave away 45 - 20 = 25 dollars. The answer is 25.