Last month, Sue, of Sue's Sandwiches, sold $3,000 worth of product (sandwiches and sodas) from her sidewalk cart to 300 customers. She spent $600 on the sandwich ingredients and buying the sodas wholesale. Her monthly costs are the following: Utilities = $60, Salary = $ 1,500, Advertising = $0, Insurance = $50, Interest= $0, Rent (for the cart) = $300, Depreciation = $0.

a. What are Sue's variable costs? Explain.

b. What is Sue's COGS? Explain.

c. What are her other variable costs? Explain.

d. What are her fixed costs? Explain.

e. What is Sue's EOU?

f. How much cash reserve should she keep in the bank?