Sarah uses 1 ounce of shampoo, and one half as much conditioner as shampoo daily. In two weeks, what is the total volume of shampoo and conditioner, in ounces, that Sarah will use? Give the rationale and then the answer.
Let's think step by step. Sarah uses 1 + 0.5 = 1.5 ounces of hair care products daily. Two weeks is 2 * 7 = 14 days. In 14 days, Sarah will use 14 * 1.5 = 21 ounces of hair care products.. The answer is: 21.

It is raining outside and Bill puts his empty fish tank in his yard to let it fill with rainwater. It starts raining at 1 pm. 2 inches of rainfall in the first hour. For the next four hours, it rains at a rate of 1 inch per hour. It then rains at three inches per hour for the rest of the day. If the fish tank is 18 inches tall, at what time will it be filled with rainwater. Give the rationale and then the answer.
Let's think step by step. At 2 pm there are 2 inches of rain in the tank. At 6pm, there are 2 + 4 * 1 = 6 inches of rain in the tank. That means that there are 18 - 6 = 12 inches of tank that still need to be filled as of 6 pm. It will take 12 / 3 = 4 hours to finish filling the tank. The tank will be filled at 6 + 4 = 10pm.. The answer is: 10.

Benny bought 2 soft drinks for$ 4 each and 5 candy bars. He spent a total of 28 dollars. How much did each candy bar cost? Give the rationale and then the answer.
Let's think step by step. Benny spent 2 * $4 = $8 on soft drinks. Benny spent a total of $28 - $8 on soft drinks = $20 on candy bars. Benny spent $20 / 5 candy bars = $4 for each candy bar.. The answer is: 4.