Question: Noemi lost $400 on roulette and $500 on blackjack. How much money did Noemi begin with if she still had $800 in her purse?
Answer: The total amount of money that she lost is $400 + $500 = $900. If she remained with $900, she initially had $900 + $800 = $1700. The answer is 1700.
[Question]There are 6 times as many lab coats as uniforms in the lab. The number of lab techs is half of the number of uniforms. If there are 12 uniforms in the lab, and the lab techs share the coats and uniforms equally among them, how many coats and uniforms in total does each lab tech get?
[Answer]If there are 12 uniforms, and the lab coats are 6 times as many as the number of uniforms, there are 6 * 12 = 72 lab coats. The total number of lab coats and uniforms in the lab is 72 + 12 = 84. If the number of lab techs is half the number of uniforms, then there are 12 / 2 = 6 lab techs. If they share the lab coats and uniforms equally, each lab tech will get 84 / 6 = 14 lab coats and uniforms. The answer is 14.
Q: The ratio of boys to girls in a classroom is 3:5. If there are 4 more girls than boys, how many students are in the classroom?
A: Since the ratio of boys to girls is 3:5, then the class is divided into 3 + 5 = 8 parts. The girls have 5 - 3 = 2 parts more than the boys. Since 2 parts are equal to 4, then 1 part is equal to 4 / 2 = 2 students. Hence, there are 8 parts x 2 = 16 students. The answer is 16.
Question: Aubriella is pouring water into a 50-gallon fish tank at the rate of 1 gallon every 20 seconds. How many more gallons will she have to pour into the tank to fill the tank if she poured water into the fish tank for 6 minutes?
Answer: When she poured water into the gallon for 6 minutes, the total time in seconds she took is 6 minutes * 60 seconds / minute = 360 seconds. If in 20 seconds she poured 1 gallon of water into the tank, in 360 seconds, she poured 360 seconds / 20 seconds / gallon = 18 gallons of water into the tank. Aubriella will have to pour 50 gallons - 18 gallons = 32 more gallons into the tank to fill the tank. The answer is 32.
[Question]Jessica is making an apple pie. She knows that each serving requires 1.5 apples and she has 12 quests. She plans to make 3 pies, which each contain 8 servings. If her guests finish all the pie, on average , how many apples does each guest eat?
[Answer]She is making 24 servings because 3 x 8 = 24. Each guest has 2 servings because 24 / 12 = 2. Each guest has 3 apples because 2 x 1.5 = 3. The answer is 3.
[Question]Holly wants to plant a wall of privacy trees along her fence line. Her fence is 25 yards long. At maturity, the trees she wants to plant will measure 1.5 feet wide. Right now, these trees are on sale for $8.00 apiece. How much will it cost her to plant a row of the trees to run the length of her fence?
[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.
user
3 feet are in 1 yard and her fence is 25 yards long so her fence is 3 * 25 = 75 feet long. At maturity these trees will measure 1.5 feet and she needs them to run along her 75 - foot fence so she needs 75 / 1.5 = 50 trees. The trees cost $8.00 apiece and she needs 50 so 8 * 50 = $400.00 worth of trees. The answer is 400.