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Find the average speed of a rabbit that runs a distance of 22 m in a time of 1.8 s .

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

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?