1.What are the five (5) categories of GDP when measured by "what is produced."

2.Assume an economy in Year 1 produces 10 units of Good A with a selling price of $5. In year 2, the economy produces 17 units of Good A with a selling price of $7. In year 3, the economy produces 25 units of Good A with a selling price of $10. In year 4, the economy produces 40 units of Good A with a selling price of $9. Assume that Year 3 is designated as the "base year" for the economy.

What is the mathematical expression for calculating Nominal GDP in Year 4?

What is the mathematical expression for calculating Real GDP in Year 4?