Determine the sample space of all of the possible outcomes of choosing a card numbered 1, 2,3, or 4 and a blue, green, or yellow marble. How many outcomes involve choosing a blue
marble?
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What is the difference between the equations of a vertical and a horizontal line?

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?

Which number is located at point a on the number line? a number line is shown from negative 10 to 10 with each interval mark on the number line representing one unit. point a is labeled one interval mark to the right of negative 5.