Question: Rachel is writing an essay. She writes 1 page every 30 minutes. She spends 45 minutes researching the topic. She writes a total of 6 pages. Then she spends 75 minutes editing her essay. Altogether, how many hours did she spend completing the essay?
Answer: Step-by-step reasoning process: She spends this long researching and editing her essay 45 min + 75 min = 120 min. Converting the minutes to hours for researching and editing is 120 / 60 = 2 hours. She spends this long writing the essay 6 x 30 min = 180 min. Converting the minutes to hours for writing the essay is 180 / 60 = 3 hours. The total hours Rachel spends completing the essay is 2 + 3 = 5 hours.
So the answer is 5.

Question: Adam's father deposited $2000 in the bank. It receives 8% interest paid throughout the year, and he withdraws the interest as soon as it is deposited. How much will Adam’s father have, including his deposit and the interest received after 2 and a half years?
Answer: Step-by-step reasoning process: The annual interest is 2000 * 8 / 100 = $160. Interest for two and a half years is 160 * 2.5 = $400. So, Adam's father will have 2000 + 400 = $2400 after 2 and a half years.
So the answer is 2400.

Question: Ice cream costs $2.00 and toppings cost $0.50 per topping. How much does a sundae with 10 toppings cost?
Answer: Step-by-step reasoning process: First find the total cost of the toppings: 10 toppings * $0.50 / topping = $5.00. Then add that amount to the cost of the ice cream: $5.00 + $2.00 = $7.00.
So the answer is 7.

Question: Mike decides to buy a new camera. He wants to buy a top-of-the-line camera but he decides to wait for the new model to come out. The new model costs 30% more than the current model. The old camera cost $4000. He gets $200 off a $400 lens he bought. How much did he pay for the camera and lens?
Answer:
Step-by-step reasoning process: The new camera cost 4000 * .3 = $1200 more than the old camera. So the camera cost 4000 + 1200 = $5200. The lens cost 400 - 200 = $200. So the total cost was 5200 + 200 = $5400.
So the answer is 5400.