Answer this question:Harry uses a whole bag of chocolate chips when he makes dough for chocolate chip cookies. The dough makes three batches of cookies, and each cookie has nine chocolate chips in it. A bag of chocolate chips has 81 chips in it. How many cookies are in a batch?
There are 81 / 3 = 27 chips in a batch. Thus, there are 27 / 9 = 3 cookies in a batch.
The answer is 3.

Answer this question:Alfred likes to save $1,000.00 over 12 months for his Christmas shopping. He has $100.00 left over from last year's holiday to put towards this year's goal. How much money does Alfred now need to save each month in order to reach his goal in 12 months?
He wants to save $1,000.00 and he has $100.00 left over so he still needs to save 1000 - 100 = $900.00. He wants to save $900.00 over 12 months so that means he needs to save 900 / 12 = $75.00 per month.
The answer is 75.

Answer this question:Jodi and Vance are researching on a deserted island and have to stay on the island for a certain number of weeks to carry out their research. On their first expedition, they stayed for three weeks on the island. They spent two weeks more on the second expedition than they spent on their first expedition. They spent twice as many weeks on their last expedition as they spent on their second expedition. Calculate the total number of days they spent on the island on all the trips.
If they spent two more weeks on their second research expedition than they spent on the first week, they spent 2 + 3 = 5 weeks on the island. In the two expeditions, they stayed on the island for a total of 5 + 3 = 8 weeks. On their third expedition, they spent twice as many weeks as they spent on the second week on the island, which is 2 * 5 = 10 weeks. In all three expeditions, they stayed on the island for 10 + 8 = 18 weeks. Since a week has seven days, they spent 18 * 7 = 126 days on the island.
The answer is 126.

Answer this question:John has taken 10 pictures every day for the past 3 years. He saves them in raw format so each memory card can store 50 images. Each memory card costs $60. How much does he spend on memory cards?
He takes pictures for 3 * 365 = 1095 days. So he takes 10 * 1095 = 10,950 pictures. That means he needs 10950 / 50 = 219 memory cards. So he spends 219 * 60 = $13140 on memory cards.
The answer is 13140.