Nancy wants to invest 2000 in soving certificates that bear an interest rate of 9.75% per year, compounded semiannually. How long a time period should she choose to save an amount of Round your answer to two decimal

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What is the 12th term of b(n)=-4-2(n-1)

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?