$17.$ What is the amount of total intetest dollars earned on a $$5,000$ deposit earning $6\%$ for $20$ years.

Assume no withdrawals ot deposits during $20$ years and compunding to be done annually. Use FV formula with PV as negative then subtract $5000$ from FV$.$ Excel function

$18.$ You have decided that you will sell your $200,000$ house when it appreciates in value to $$369286.$ If houses are appreciating at an avergae annual rate of $7\%$ In your neighborhood, for approximately how long willl yoh be staying in your house.

Use opposite signs for PV and FV$.$

Excel function

$19.$ You just won some money in the lottery and would like to save a portion of it so that you will have $$50,000$ to put on a down payment on a house in five years. Your bank pays a $8\%$ rate of interest. How much money will you have to set aside from the lottery winnings if possible.

Assume FV to be negative to have a positive PV$.$ Excel function