Omar buys a 12-ounce cup of coffee every morning on the way to work. On the way to work, he drinks one-quarter of the cup. When he gets to his office, he drinks another half of the cup. He forgets to drink any more of his coffee once he starts working, and when he remembers his coffee, he only drinks 1 ounce of the remaining amount because it is cold. How many ounces will be left in the cup afterward? Give the rationale and then the answer.
Let's think step by step. Omar drinks 1 / 4 * 12 = 12 / 4 = 3 ounces on the way to work. Omar drinks 1 / 2 * 12 = 12 / 2 = 6 ounces when he gets to his office. When he drinks 1 ounce more, he will have drunk 3 + 6 + 1 = 10 ounces. Thus, there will be 12 - 10 = 2 ounces left in the cup afterward.. The answer is: 2.

For every 12 cans you recycle, you receive $0.50, and for every 5 kilograms of newspapers, you receive $1.50. If your family collected 144 cans and 20 kilograms of newspapers, how much money would you receive? Give the rationale and then the answer.
Let's think step by step. There are 144 / 12 = 12 sets of 12 cans that the family collected. So, the family would receive $0.50 x 12 = $6 for the cans. There are 20 / 5 = 4 sets of 5 kilograms of newspapers that the family collected. So, the family would receive $1.50 x 4 = $6 for the newspapers. Therefore, the family would receive a total of $6 + $6 = $12.. The answer is: 12.

In her bakery, Teal sells pumpkin pie and custard pie by the slice. The pumpkin pie is cut into 8 pieces. The custard pie is cut into 6 pieces. Pumpkin pie is $5 a slice. Custard pie is $6 a slice. If Teal sells 4 pumpkin pies and 5 custard pies, how much money does she make from her sales? Give the rationale and then the answer.
Let's think step by step. Teal sells 8 x 4 = 32 pumpkin slices. She sells 6 x 5 = 30 custard slices. Pumpkin pie slice sales make 32 x $5 = $160. Custard pie slice sales make 30 x $6 = $180. Total amount of money she makes is $160 + $180 = $340.. The answer is: 340.