3. Alexis has a job as a film editor where she makes $150,000 per year . She owns a building that she rents for $70,000 per year . She is considering quitting her editing job and using the building she owns to open an ice cream shop . Alexis calculates that she will make $250,000 per year selling ice cream .She will need to pay $20,000 for ingredients and equipment , along with another $20,000 to hire extra help in the summer . 3) Alexis' accountant says that she will make a prot .15 the accountant correct ? How much prot does Alexis 'account say she will make ? Explain . b) Should Alexis switch from film editing to the ice cream business ? Explain . 4. You spent $50 to reserve a seat at a dinner that you believe will give you a benefit equal to $100 . The dinner reservation cannot be exchanged or refunded . After making the reservation : your friend offers to sell you a ticket to the opening night of a film that you want to see. The movie ticket will cost $20 and you know that seeing the film will give you a benefit equal to $110 . Should you go to the dinner or the film ? Explain . 5. Three cake makers have very different ways of operating their businesses .The table below shows the total cost for each of them , for making cakes . Ryan's total cost $0 $28 $48 ') Calculate the marginal cost for each cake maker . Draw the marginal cost curve for each. Who has increasing marginal cost , who has decreasing marginal cost, and who has constant marginal cost? I Raheem works as an Uber driver in his spare time . His total benet and total cost depend on the number of hours that he drives , as shown in the table below