options for iii are

2.5 or 25 or 50 or 250

Eric's cafe is a price taker in the market for sandwiches. Eric's total costs are given by the function, TC(QEric)=50QEric2+500 The market price of a sandwich is $10. Use the information provided to answer the following questions: i. Eric's fixed costs are a. FC=10. b. FC=10QEric- c. FC=50. d. FC=500. ii. Eric's marginal cost is given by the function a. MC=25QEric. b. MC=50QEric. c. MC=50QEric+QEric500. d. MC=10QEric. iii. Eric's profit maximising quantity is