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Use logarithms to solve the following problems 1. How long will it take $12,000 to grow...

Use logarithms to solve the following problems

1. How long will it take $12,000 to grow to $18,000 if the investment earns interest at the rate of 2%/year compounded monthly?

2. Find the interest rate needed for an investment of $4200 to double in 6 years if interest is compounded continuously

3. How long will it take an investment of $7,000 to double if the investment earns interest at the rate of 5% compounded continuously?

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