Thirty employed single individuals were randomly selected to examine the relationship between their age (Age)and their credit card debt (Debt)expressed as a percentage of their annual income.Three polynomial models were applied and the following table summarizes Excel's regression results. 
What is the regression equation that provides the best fit?
Definitions:
Inflation
A general increase in prices and a decrease in the purchasing value of money.
South Korean Won
The official currency of South Korea, represented by the symbol ₩ and the ISO code KRW.
Flexible Exchange Rates
A currency system where the value of a country's currency is allowed to fluctuate according to the foreign exchange market forces of demand and supply.
Market for Yen
The foreign exchange market where the Japanese yen is traded, including the buying, selling, and speculating on yen.
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