[Question]Joe goes camping with his dad on a Friday. Joe's dad has 21 marshmallows, and Joe has four times as much marshmallows as his dad. If Joe’s dad roasts a third of his marshmallows, and Joe roasts half of his marshmallows, how many marshmallows did they roast in total?
[Answer]Joe’s dad roasts 21 / 3 = 7 of his marshmallows. Joe has 21 * 4 = 84 marshmallows. Joe roasts 84 / 2 = 42 of his marshmallows. Joe and his dad roasted 7 + 42 = 49 marshmallows in total. The answer is 49.

[Question]Carly is trying to get in shape to try out for the soccer team. She starts by running 2 miles a week. The second week, she runs twice as long plus 3 extra miles per week. The third week she runs 9/7 as much as she ran the second week. The week after that, she sprains her ankle and has to reduce her running time by 5 miles per week. How many miles did she run the week she was injured?
[Answer]First find how long Carly runs the second week: 2 miles * 2 + 3 = 7 miles. Then find how long she runs in the third week: 9 / 7 * 7 miles = 9 miles. Then subtract the 5 miles reduction from when she was injured: 9 miles - 5 miles = 4 miles. The answer is 4.

[Question]Ian used a grocery delivery app to have his groceries delivered. His original order was $25 before delivery and tip. He noticed that 3 items changed on his order. A $0.99 can of tomatoes was replaced by a $2.20 can of tomatoes, his $1.00 lettuce was replaced with $1.75 head of lettuce and his $1.96 celery was replaced with celery that cost $2.00. Delivery and tip came to a total of $8.00. How much is his new bill now, with the food substitutes and delivery/tip?
[Answer]He ordered a can of tomatoes for $0.99 but they subbed with one that cost $2.20 for a difference of 2.20 - .99 = $1.21. He ordered lettuce for $1.00 but they subbed with one that cost $1.75 for a difference of 1.75 - 1.00 = $0.75. His celery for $1.96 but they subbed with one that cost $2.00 for a difference of 2.00 - 1.96 = $0.04. That's an additional charge of 1.21 + .75 + .04 = $2.00 in groceries. His additional charges of $2.00 and the delivery / tip of $8.00 add 2 + 8 = $10.00 to the order. His original order was $25 and they added $10.00 so his new order is 25 + 10 = $35.00. The answer is 35.

[Question]Adam needs a new laptop and has two choices. The first laptop is $500, and the second laptop is 3 times as costly as the first laptop. How much would Adam have to spend if he decides to buy both?
[Answer]
The second laptop costs $500 * 3 = $1500. Adam needs to spend $1500 + $500 = $2000 for both. The answer is 2000.