Expand the brackets: m(2m³-5)

If you answer right ill give brainliest, : )

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?

Ill mark the brainliest if you me with the these three questions 7,8,9