Mark has an egg farm. His farm supplies one store with 5 dozen eggs and another store with 30 eggs each day. How many eggs does he supply these two stores in a week? Give the rationale and then the answer.
Let's think step by step. Since a dozen is equal to 12, then Mark's egg farm supplies one store with 5 x 12 = 60 eggs each day. It supplies the two stores with a total of 60 + 30 = 90 eggs each day. Therefore, the egg farm supplies the two stores with 90 x 7 = 630 eggs in a week.. The answer is: 630.

Molly and her parents love to hang out at the beach on weekends. Molly spent the better part of the day at the beach and saw 100 people join them. At 5:00, 40 people left the beach. What's the total number of people at the beach if they all stayed until evening? Give the rationale and then the answer.
Let's think step by step. Molly and her parent were 2 + 1 = 3 people. When 100 more people joined, the total number became 3 + 100 = 103. If 40 people left before evening, the number reduced to 103 - 40 = 63 people.. The answer is: 63.

Jennifer has ten pears, 20 oranges, and twice as many apples as pears. If she gives her sister two of each fruit, how many fruits does she have left? Give the rationale and then the answer.
Let's think step by step. Jennifer has 2 * 10 = 20 apples. She has a total of 10 + 20 + 20 = 50 fruits. She gives her sister 2 pears + 2 oranges + 2 apples = 6 fruits. After giving her sister 2 of each fruit, she has 50 - 6 = 44 fruits left.. The answer is: 44.