Suppose $100 dollars is deposited into an account and the account doubles every 8 years . how much will in the account after 40years ?

You have $600,000 saved for retirement. your account earns 5.5% interest. how much, to the nearest dollar, will you be able to pull out each month, if you want to be able to take withdrawals for 20 years?

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need

The holiday party will cost $160 if 8 people attend. if there are 40 people who attend the party, how much will the holiday party cost