Question: Nadia walked 18 kilometers, which was twice as far as Hannah walked. How many kilometers did the two girls walk in total?
Answer: Hannah = (1 / 2) 18 = 9. 9 + 18 = 27 km. Together they walked 27 kilometers. The answer is 27.

Question: There are 3 boxes of cereal. One box holds 14 ounces of cereal. Another box holds half the amount of the first box and 5 ounces less than the third box. How much cereal is there in all 3 cereal boxes?
Answer: First = 14 oz. Second = (1 / 2) * 14 = 7 oz. Third = 7 + 5 = 12 oz. 14 + 7 + 12 = 33 oz. There are 33 ounces of cereal in those 3 boxes. The answer is 33.

Question: During the holidays, Lance works as a merchandiser. He works 35 hours a week, spread equally over 5 workdays. If Lance earns $9 an hour, how much does he make on each workday?
Answer: Lance works 35 / 5 = 7 hours a day. So he makes $9 x 7 = $63 on each workday. The answer is 63.

Question: Tim used to run 3 times a week but decided to add an extra 2 days a week. She runs 1 hour in the morning and 1 in the evening every day she runs. How many hours a week does she run now?
Answer:

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.
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He now runs 3 + 2 = 5 times a week. Each day he runs for 1 + 1 = 2 hours. So he runs 2 * 5 = 10 hours a week. The answer is 10.