A food truck earns $32 from staying open one more hour, while staff and fuel for that hour cost $38. Should it stay open?

A bookstore expects $45 in extra sales from one more hour open, and wages and utilities for that hour cost $30. What should the owner do?

A bakery's next batch will bring $12 in marginal benefit and cost $12 to make. How does this batch fit the marginal decision rule?

A factory can make one more unit that adds $75 in revenue but requires $80 in additional materials and labor. What is the rational choice?

A tutor can add one session that produces $50 in fees and costs $35 in travel and preparation time. What should the tutor do?

Selling tickets for one more concert hour would bring $18 in revenue and cost $20 in overtime pay and electricity. What should the venue do?

Adding one feature to an app is expected to create $90 in extra sales and cost $60 to develop. Which decision follows marginal analysis?

Making 10 mugs costs $100 total, while making 11 mugs costs $112 total. What is the marginal cost of the 11th mug?

A game store's total benefit is $160 from selling 4 memberships and $185 from selling 5 memberships. What is the marginal benefit of the fifth membership?

A company spends $300 to produce 50 backpacks and $309 to produce 51 backpacks. What is the marginal cost of backpack 51?

A farm's total benefit from 6 workers is $210 per day and from 7 workers is $238 per day. What is the marginal benefit of the seventh worker?

Producing 15 tables costs $420 total, and producing 16 tables costs $450 total. What is the marginal cost of the 16th table?

Maya paid $25 for a movie ticket that cannot be refunded. A friend invites her to a free dinner she would enjoy more at the same time. What should Maya weigh now?

A club paid a nonrefundable $600 deposit for a trip. Before paying the remaining $400, members learn a different trip would provide more value for $300. What comparison matters?

Jordan spent $40 building a website that has no resale value. Hosting it for one more month costs $15. What should determine whether Jordan keeps hosting it?

A student bought a nonreturnable $120 textbook, then considers dropping the course before classes begin. Which is the relevant economic question?

A retailer can improve its website for $150 and gain $240 in monthly sales, or buy ads for $275 and gain $300 in monthly sales. Which option has the larger net benefit?

A bakery can begin delivery service for $100 per week and gain $300 per week, or add a display case for $350 per week and gain $500 per week. Which choice should it make?

Leah can take a training course costing $80 with a $130 benefit, or earn a certificate costing $200 with a $310 benefit. What does cost-benefit analysis favor?

A shop can repair a machine for $450 and gain $700 in expected output value, or replace it for $900 and gain $1,000 in expected output value. Which option is preferred?