I now have $30,000 in the bank earning interest of .75% per month. I need $40,000 to make a down payment on a house. I can save an additional $100 per month. How long will it take me to accumulate the $40,000?

I now have $30,000 in the bank earning interest of 75% per month. I need $40,000 to make a down payment on a house. I can save an additional $100 per month. How long will it take me to accumulate the $40,000? (Do not round intermediate calculations. Round your answer to 2 decimal places. Use a financial calculator or Excel.) Time required months