Suppose that net exports are greater than zero. If the capital account is in balance, ___. Multiple Choice the sum of the reserve account and the financial account must be zero there is a current account surplus there is a financial account surplus there is a reserve account surplusSuppose a firm is able to sell their product for a price of $3. You have the following information on the firm's output and cost. Output 600 Implicit Costs $100 Explicit Costs $300 Instructions: Enter amounts as a whole number. If the firm is earning a loss indicate with a negative sign (-). What is the firm's economic profit