Question $3$: $(30$ points$)$

You want to invest $40\mathrm{.}000TL$ at the begimning of each year for the next $5$ years. You have got following options: If you deposit your money in the bank, you get $5\%$ interest income per year. Also, if you invest your money in a $3-$year municipal$-$bond, you can get $6\mathrm{.}5\%$ per yeas and have a current market price equal to $104\%$ of face value. Hovever, the government deducts $12\%$ tax per year from the interest income you get from the bank. How should your investment be planned?

$($Create only the LP model, do not solve the problemi$)$