Question: Bella, Monica, and Rachel are friends who like jewelry. Bella has 10 earrings, which is 25% of Monica's earrings, and Monica has twice as many earrings as Rachel. How many earrings do all of the friends have?
Answer: Bellas has 100% / 25% = 4 times less earrings than Monica. This means that Monica has 10 * 4 = 40 earrings. Rachel has two times fewer earrings than Monica, which means 40 / 2 = 20 earrings. So all three friends, have a total of 10 + 40 + 20 = 70 earrings. The answer is 70.

Question: Harris feeds his dog 1 large organic carrot over the course of 1 day. There are 5 carrots in a 1 pound bag and each bag costs $2.00. In one year, how much will Harris spend on carrots?
Answer: His dog gets 1 carrot a day and there are 365 days in a year, so his dog eats 1 * 365 = 365 carrots. There are 5 carrots per bag and he will need 365 carrots, so that's 365 / 5 = 73 bags of carrots. The bags cost $2.00 and he will need 73 bags so that's $2 * 73 = $146.00 worth of organic carrots. The answer is 146.

Question: Sasha can complete 15 questions an hour. If she has 60 questions to complete and she works for 2 hours, how many questions does she still need to complete?
Answer: Sasha completes 15 questions / hour * 2 hours = 30 questions. This means there are still 60 questions – 30 questions = 30 questions left to complete. The answer is 30.

Question: Bob was creating a math test for an online platform. He created 13 questions in the first hour. Bob then doubled his rate for the second hour, and doubled his second hour rate for the third hour. How many questions did Bob create in the three hours?
Answer:
First hour: 13. Second hour:13(2) = 26. Third hour: 26(2) = 52. Total:13 + 26 + 52 = 91 questions. The answer is 91.