Can anyone solve this question?
(x+y)/x + (x-y)/y - (y^2 -x^2)/xy =?

What is the value of r of the geometric series?

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?

True or false look at the picture pls : /