1.The total revenue for a given year of a firm is $1,000,000. The cost of goods sold for the same accounting period is $360,000. The total expenses incurred are $200,000. What is the net profit for the firm?

2. What is the relationship between interest rates and aggregate spending?

3. Debbie is a Financial Planner and charges her clients on a commission basis. For a particular month, Debbie makes three deals of $40,000. If she charges 1% commission for each deal, what will be her commission for the month?