Q: Mandy is ten years older than Jackson. Adele is 3/4 as old as Jackson. What's the total of their ages 10 years from now If Jackson is 20 years old now?
A: In ten years, Jackson will be 20 + 10 = 30 years old. If Jackson is 20 now, Mandy is 20 + 10 = 30 years old. Ten years from now, Mandy will be 30 + 10 = 40 years old. The combined age of Jackson and Mandy ten years from now is 30 + 40 = 70 years. Adele is 3 / 4 times as old as Jackson, meaning she is 3 / 4 * 20 = 15 years old. Adele's age will be 10 + 15 = 25 years old ten years from now. Altogether, Mandy, Jackson, and Adele will have a total of 25 + 70 = 95 years. The answer is 95.

Q: Lucille is wondering who has the tallest house between her and her neighbors. His family's house is 80 feet tall. One neighbor's house is 70 feet tall. Another neighbor's house is 99 feet tall. How much shorter is Lucille's house than the average height?
A: The houses are 249 feet in total because 70 + 80 + 99 = 249. The average height is 83 feet because 249 / 3 = 83. Her house is 3 feet shorter because 83 - 80 = 3. The answer is 3.

Q: The Reptile House at the zoo has 5 fewer animals than 3 times the number of animals housed in the Rain Forest exhibit. If the Reptile House has 16 animals, how many are in the Rain Forest exhibit?
A:
Let x be the number of animals in the Rain Forest exhibit. 3x - 5 = 16. 3x = 21. x = 7. The answer is 7.