a company suffered a loss of $5.4 million in
its first year. It lost another $3.1 million in the second year. It nade a profit of $4.9 million in the third year.

a) Determine the average profit or loss for the first three years

b) After its fourth year of business, the company's combined profit for all four years was $0. Determine the company's profit or loss during the fourth year.​