Algebra 2 help?

Question

I keep getting the wrong answer for these questions. If someone could please help that would be great.

Thank you!!

1. The annual Gross Domestic Product (GDP) of a country is the value of all of the goods and services produced in the country during a year. During the period 1985-1999, the Gross Domestic Product of the United States grew about 3.2% per year, measured in 1996 dollars. In 1985, the GDP was $577 billion. I what year did/or will the GDP equal $4.0 trillion?

2.The annual Gross Domestic Product (GDP) of a country is the value of all of the goods and services produced in the country during a year. During the period 1985-1999, the Gross Domestic Product of the United States grew about 3.2% per year, measured in 1996 dollars. In 1985, the GDP was $577 billion. I what year did/or will the GDP equal $2.2 trillion?

Answer 1

4000=577e^.032t t=years after 1985

e^.032t= 4000/577

t (ln(4000/577)/.032

= about 60 1/2 years

= about 1985+61 = 2046

when GDP reaches $4 trillion

it will reach $2.2 trillion in 2027