Hassnein recently deposited $$31,500$ in a savings account paying a guaranteed interest rate of $2\mathrm{.}2$ percent for the next $10$ years. Hassnein expects his marginal tax rate to be $22\mathrm{.}00$ percent for the next ten years and will withdraw enough cash every year to pay the tax on the interest he earns.

Required:

How much interest will he earn after$-$tax for the first year of his investment?

How much interest will he earn after$-$tax for the second year of his investment?

How much will he have in the account after $4$ years?