[Question]Alexander was 50 inches on his 8th birthday. If he grows 1/2 a foot a year, how many inches tall will he be on his 12th birthday?
[Answer]He grows six inches a year because 12 x .5 = 6. He will grow 24 inches between his 8th and 12th birthday because 4 x 6 = 24. He will be 74 inches tall because 50 + 24 = 74. The answer is 74.
Q: Levi and his brother were playing basketball. Levi had scored 8 times and his brother had scored 12 times. Levi was determined to beat his brother by at least 5 baskets. How many more times does Levi have to score in order to reach his goal if his brother scores another 3 times?
A: Altogether, Levi's brother scores 12 + 3 = 15 times. If Levi wants to beat him by 5, he needs to score a total of 15 + 5 = 20 times. Levi needs to score another 20 - 8 = 12 times. The answer is 12.
Question: After geometry class, Bill wants to count how many lines he drew. For each shape, he drew one line per side. If he drew 12 triangles, 8 squares, and 4 pentagons, how many lines did he draw?
Answer: For the triangles, he drew 36 lines because 12 times 3 equals 36. For the squares, he drew 32 lines because 8 times 4 equals 32. For the pentagons, he drew 20 lines because 4 times 5 equals 20. He drew 88 lines in total because 36 plus 32 plus 20 equals 88. The answer is 88.
[Question]Samara and three of her friends heard alligators spotted on the local river and decided to join a search organized by the wildlife service to capture the animals. After searching the whole day, Samara had seen 20 alligators while her friends had seen an average of 10 alligators each. Calculate the total number of alligators Samara and her friends saw.
[Answer]Each of Samara's friends saw an average of 10 alligators each, a total of 3 * 10 = 30 alligators. Together, Samara and her friends saw 30 + 20 = 50 alligators. The answer is 50.
Q: Yoque borrowed money from her sister. She promised to pay it back in 11 months including an additional 10% of the money she borrowed. If she pays $15 per month, how much money did she borrow?
A: In 11 months, Yoque will pay a total of $15 x 11 = $165. The amount $165 is 100% + 10% = 110% of the money she borrowed. So, 1% is equal to $165 / 110 = $1.50. Hence, Yoque borrowed $1.50 x 100 = $150. The answer is 150.
Question: It costs Molly $5 per package to send Christmas gifts to her relatives by mail. She has two parents and three brothers, and each of her brothers is married with 2 children each. If she sends one package to each relative by mail, how much does it cost her to send all of the gifts by mail to her relatives, in dollars?
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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Molly has two parents and three brothers, which totals 2 + 3 = 5 parents and siblings. Since each brother is married with 2 children, then each brother has a family containing 1 + 2 = 3 people. Thus, the families of the three brothers contain an additional 3 * 3 = 9 relatives. In total, Molly has 5 + 9 = 14 relatives. At $5 per package, Molly will spend 14 * $5 = $70 to mail the packages. The answer is 70.