He will write for 120 hours because 2 x 60 = 120. He will write for 24 units of five minutes each because 120 / 5 = 24. He can write 600 words because 24 x 25 = 600. He can earn $6 because 600 x .01 = 6.
The answer: 6
Reverse engineering the question: Rikki is writing and selling poetry. He sells his poems for $.01 a word. He can write 25 words of poetry in 5 minutes. If he has 2 hours to write poetry, how much can he expect to earn?

Bucket A has 10 more seeds than bucket B: so there are 10 seeds + 30 seeds = 40 seeds in bucket A. Bucket A and bucket B have 40 seeds + 30 seeds = 70 seeds together. If there are 100 seeds in all the buckets, then bucket C has 100 seeds - 70 seeds = 30 seeds.
The answer: 30
Reverse engineering the question: There are three buckets of seeds labeled A, B, and C with 100 seeds. There are ten more seeds in bucket A than in bucket B, and bucket B has 30 seeds. How many seeds are in bucket C?

7 notebooks cost 7 notebooks x $4 / notebook = $28. 2 books cost 2 books x $7 / book = $14. In total Joe has spent $28 + $14 = $42. He has $56 - $42 = $14 left.
The answer: 14
Reverse engineering the question: Joe’s mother gave him $56 to go to the store. Joe bought 7 notebooks and 2 books. Each notebook costs $4 and each book costs $7. How much money does Joe have left?

Danai places 12 skulls + 4 broomsticks + 12 spiderwebs + 1 cauldron = 29 decorations. She also puts up twice as many pumpkins around the house as she put spiderwebs, 12 x 2 = 24 pumpkins. Danai will also add 20 + 10 decorations to the 29 + 24 decorations already up = 83 total decorations Danai will put up.
The answer: 83
Reverse engineering the question:

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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Danai is decorating her house for Halloween. She puts 12 plastic skulls all around the house. She has 4 broomsticks, 1 for each side of the front and back doors to the house. She puts up 12 spiderwebs around various areas of the house. Danai puts twice as many pumpkins around the house as she put spiderwebs. She also places a large cauldron on the dining room table. If Danai has the budget left to buy 20 more decorations and has 10 left to put up, how many decorations will she put up in all?