Please solve these questions with the help of BA II plus calculator.

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22. An ordinary annuity consists of 50 semi-annual deposits of $700. What is the future value of the annuity if it earns interest at the rate of 6% compounded semi-annually for the first 15 years and 8% compounded semi- annually for the last 10 years? 23. An ordinary annuity with an opening balance of $6,000 receives quarterly deposits of $500 for during the first 6 years. Find the future value of this annuity if it earns interest at the rate of 5% compounded quarterly and the fund matures in 10 years time