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You open a savings account that pays 6.000%, compounded monthly. You invest $1,000 today and then add an additional deposit of $50 every month. What is it worth at the end of 10 years? Answer is $, no decimal places. 4. You want to buy a house in 10 years and figure you can put $185 a month into an account that earns 3.250%, compounded monthly, to save up for a down-payment. At the end of 10 years how much money will you have saved? Answer is $, no decimal places. You figure that you need $500,000 in savings to retire in 40 years. You can earn 4.000%, compounded monthly. How much do you need to save every month to have $500,000 in 40 years? Answer is $, no decimal places