What is the domain of f?

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?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab