Suppose P = {red, blue, green, yellow}, Q = {red, green, black}, and R = {black, green, purple}. Which set is equivalent to ( P ∪ R ) ∩ Q ( P ∪ R ) ∩ Q ?

Brook states that the distance on the line is 4 units. caleb states that the whole line does not have a distance because it continues on forever. vivian states that the line is 6 units long. which distance did brook measure? which distance did vivian measure?

Arecipe calls for 2 2/4 cups of raisins, but julie only has a 1/4 measuring cup. how many 1/4 cups is needed to measure out 2 2/4 cups of raisins?

Which of the following is not a subset of {1,2,3}?