What is the value of x?
6.75+1= 13.
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7
18
O 2
O 171
O 182
O 535

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?

What numbers are included in the set of integers? what numbers are not included?

Find the quotient with the restriction.