please help with the screenshot questions

Mayri produces paintings with cost structure as shown below. If the market price is constant at $75, how many units would be prot-maximizing? Total cost of 1 unit = $30 Total cost of 2 units = $60 Total cost of 3 unit = $100 Total cost of 4 unit = $150 Total cost of 5 units = $210 Total cost of 6 units = $280 Total cost of 7 units = $360 Total cost of 8 units = $450 01 02 08 05 06 Q4 03 Which of the following would be an implicit cost? 0 Rent paid to the owner of the building 0 Income a business owner would have earned if they were to work elsewhere 0 Wages paid to workers they have hired 0 Interest payments on a loan from a bank Jose is thinking quitting his current job, which pays $50,000 a year, and taking over a small store that he owns and currently rents out for extra income of $60,000 a year. He wants to open an ice cream store. His expenses at the store would be $80,000 per ice cream and labor. He also would pay $10,000 per year in insurance. He would make $140,000 in revenues. What are his explicit costs if he opens the ice cream store? 0 $100,000 0 $200,000 0 $90,000 0 $60,000 0 $50,000 0 $190,000 0 $ 1 10,000 A profit-maximizing firm produces 10 units of output when the price is $25. The AVC is $22, AFC is $5, and MC is $25. From this we know: O The firm should exit in the long-run The firm is losing $25 O The firm will continue making $30 in the long-run O The firm is losing $30 O The firm should raise the price in the long-run