[Question]: Of the 3 friends, Harry has 4 times as many fish as Joe, and Joe has 8 times as many fish as Sam does. If Sam has 7 fish, how many fish does Harry have?
[Answer]: Joe has 8 * 7 = 56 fish. Harry has 4 * 56 = 224 fish.
So the answer is 224.

[Question]: Trip wanted to watch the new action movie in theaters. An evening ticket cost $10 and a large popcorn & drink combo would cost him an additional $10. He noticed on their website, they had a special offer. From 12 noon to 3 pm, save 20% off tickets and 50% off any food combos. How much money could Trip save by going to the earlier movie?
[Answer]: An evening movie is $10 and the food combo would be $10 so 10 + 10 = $20. If he goes to an earlier movie, it's 20% off the normal ticket price of $10 so 10 * .20 = $2. If he goes to an earlier movie, it's 50% off the normal food price of $10 so 10 * .50 = $5. If he saves $2 for the ticket and $5 on food, then 2 + 5 = $7 saved.
So the answer is 7.

[Question]: Carl is taking a class where the whole grade is based on four tests that are graded out of 100. He got an 80, a 75 and a 90 on his first three tests. If he wants an 85 average for the class, what is the minimum grade he needs to get on his last test?
[Answer]:
First, find the total number of points Carl needs to earn across all the tests by multiplying his desired average by the number of tests: 85 * 4 = 340 marks. Then subtract all Carl's previous test scores to find the last score he needs to earn: 340 - 80 - 75 - 90 = 95 marks.
So the answer is 95.