Question: Hannah is at a restaurant. She spends $23 in total on an entree and a dessert. If the entree costs $5 more than the dessert, how much does the entree cost, in dollars?
Answer with step-by-step thinking: Let D be the cost of the dessert in dollars. The entree costs D + 5 dollars. D + (D + 5) = 23. 2D + 5 = 23. 2D = 18. D = 9. The entree costs $14.
So the answer is 14.

Question: The post office receives 60 letters and 20 packages per day. How many pieces of mail does it handle in six months if all the months have 30 days?
Answer with step-by-step thinking: First find the total number of pieces of mail the post office receives per day: 60 letters + 20 packages = 80 pieces of mail. Then multiply the daily amount of mail by the number of days per month: 80 pieces / day * 30 days / month = 2400 pieces / month. Then multiply that number by 6 to find the total number of pieces of mail handled: 2400 pieces / month * 6 months = 14400 pieces.
So the answer is 14400.

Question: Each bird eats 12 beetles per day, each snake eats 3 birds per day, and each jaguar eats 5 snakes per day. If there are 6 jaguars in a forest, how many beetles are eaten each day?
Answer with step-by-step thinking:
First find the total number of snakes eaten: 5 snakes / jaguar * 6 jaguars = 30 snakes. Then find the total number of birds eaten per day: 30 snakes * 3 birds / snake = 90 snakes. Then multiply the number of snakes by the number of beetles per snake to find the total number of beetles eaten per day: 90 snakes * 12 beetles / snake = 1080 beetles.
So the answer is 1080.