Question: Maci is planning for the new school year and goes to the store to buy pens. She needs ten blue pens and 15 red pens. If a blue pen costs ten cents each and a red pen costs twice as much as the blue pen, how much money does Maci pay for the pens?
Answer with step-by-step thinking: Maci pays 10 * $0.10 = $1 for the blue pens. Each red pen costs 2 * $0.10 = $0.20. She pays 15 * $0.20 = $3.00 for the red pens. To buy all the pens she needs, Maci pays $3 + $1 = $4.
So the answer is 4.


Question: A rectangular flowerbed in the city park is 4 meters wide. Its length is 1 meter less than twice its width. The government wants to fence the flowerbed. How many meters of fence are needed?
Answer with step-by-step thinking: Twice the width is 4 x 2 = 8 meters. The length of the rectangular flowerbed is 8 - 1 = 7 meters. Since the rectangular flower bed has 2 equal lengths, then it needs 7 x 2 = 14 meters of fence. The rectangular bed has also 2 equal widths, so it needs 4 x 2 = 8 meters of fence. Therefore, the rectangular flower bed needs a total of 14 + 8 = 22 meters of fence.
So the answer is 22.


Question: Nate got lost looking for his car in the airport parking lot. He had to walk through every row in Section G and Section H to find it. Section G has 15 rows that each hold 10 cars. Section H has 20 rows that each hold 9 cars. If Nate can walk past 11 cars per minute, how many minutes did he spend searching the parking lot?
Answer with step-by-step thinking:

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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First find the number of cars in Section G by multiplying the number of rows by the number of cars per row: 15 rows * 10 cars / row = 150 cars. Then do the same thing for Section H: 20 rows * 9 cars / row = 180 cars. Then add the two quantities of cars to find the total number of cars Nate walked past: 150 cars + 180 cars = 330 cars. Finally, divide the number of cars Nate passed by the numbers he passes each minute to find how long he spent searching: 330 cars / 11 cars / minute = 30 minutes.
So the answer is 30.