Suppose government spending was $3.70 trillion, tax revenue was $4.50 trillion, GDP was $14.04 trillion, and total consumer spending was $10.70 trillion. (Instructions: Round your answers to two decimal places and include a negative sign if necessary) a. If the economy has no exports or imports, what was the national savings? _________$ trillion. b. How much was public savings? __________ $ trillion. c. How much was private savings? ____________$ trillion.