Question $2$:

What is the future value after $15\mathrm{.}4$ years of $$74,381$ that you deposit today in an account paying $12\%$ annual compound interest?

Do not round intermediate calculations. Round your answer to $0$ decimal places.

Question $5$:

How much should you deposit today in an account paying $21\%$ annual compound interest in order to get $$550164$ after $41$ years?

Do not round intermediate calculations. Round your answer to $2$ decimal places.

Question $7$:

Suppose you deposit $$40353$ today in an account, and you will get $$531618$ after $30$ years. What is the annual compound interest rate?

Round your answer to $3$ decimal places.

Question $10$:

Assume the total cost of a college education will be $$345,000$ when your child enters college in $18$ years. You presently have $$73,000$ to invest.

What annual rate of interest must you earn on your investment to cover the cost of your child$$s college education?

Round your answer to $3$ decimal places.