How much will a metallic cylinder of radius 14m and height 3.5m cost if the metal used for making the cylinder is rs.100 per cubic metre

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?

Need so much on this one how many yards?

Ineed here’s a picture of the question