Please do this 3 questions

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How long will it take to build up a fund of $10,000 by saving $300 at the beginning of every six months at 4.5% compounded semi-annually? It will take semi-annual periods. (Round up to the nearest whole number.) The discounted value is $ (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.) The cash payment is $ (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.)