Q: Emma buys 2 containers of milk every school day for lunch. She does not go to school on the weekends. How many containers of milk does she buy in 3 weeks?
A: There are 5 school days in a week: 5 days / week x 2 containers of milk / day = 10 containers of milk every week. Finally the number of container for 3 weeks is 3 weeks x 10 containers / week = 30 containers. The answer is 30.

Q: Lauryn owns a computer company that employs men and women in different positions in the company. How many men does he employ if there are 20 fewer men than women and 180 people working for Lauryn?
A: Let's say the number of men working at the company is x. Since there are 180 people, and the number of men is 20 fewer than the number of women, then x + x + 20 = 180. The total number of employees in the company is 2x + 20 = 180. 2x = 180 - 20. 2x = 160. The number of men is x = 160 / 2. There are x = 80 men in the company. The answer is 80.

Q: Nancy wanted to make peanut butter cookies for a family gathering, but her cousin is allergic to peanuts. She decided to make almond butter cookies instead. A jar of almond butter costs three times the amount that a jar of peanut butter does. It takes half a jar to make a batch of cookies. A jar of peanut butter costs $3. How many dollars more does it cost per batch to make almond butter cookies instead of peanut butter cookies?
A:
A jar of almond butter costs 3 * 3 = $9. It takes half a jar to make a batch of cookies, so it costs 9 / 2 = $4.50 to use almond butter. It costs 3 / 2 = $1.50 to use peanut butter. Thus, it costs 4.50 - 1.50 = $3 more to make a batch of almond butter cookies than peanut butter cookies. The answer is 3.