At a candy store selling gourmet jelly beans, the amount you pay varies directly with the weight of the beans. The cost of 5 pounds of jelly beans is $12. During the past month $7200 worth of jelly beans have been purchased. How many pounds of jelly beans were purchased during the past month?

Fido’s vet has placed him on a diet; he is allowed no more than 1000 calories a day. Fido’s dry dog food has 200 calories per cup, and his biscuits have 400 calories each. Write an inequality that could be used to find d, the number of cups of dry food, and b, the number of biscuits, that Fido is allowed to eat each day.

The Seashell Hotel charges a different rate for its large rooms than for its small rooms. When 20 large rooms are occupied, the total amount of money collected for the large rooms is $1800. When 10 large rooms and 21 small rooms are occupied, the hotel collects $2370. How much does the hotel charge for each small room?

Jamal often orders books from an on-line bookstore. Paperback books cost $6 each, and hardback books cost $12 each. Jamal wants to order at least one hardback book. If he plans to spend no more than $72, write an inequality to best represents the number of paperback books, p, Jamal can order?

The science club members must raise at least $60 for a field trip. To do so, they are selling chocolates for $3 a box and mints for $2 a box. If the inequality 3x + 2y  60 represents the possible solutions to this problem, which of the following points represents a reasonable number of boxes of chocolates and boxes of mints that the club members could sell to raise enough money for their field trip? Explain your answer. A (11, 12)C (14, 8) B (12, 14)D (10, 14