An urn contains 20 marbles of which 15 are red and 5 are Blue. suppose you randomly choose a marblem, not its color and return it to the urn. you continue this until you have picked a total of 4 blue marbles. What is the probability tha you get an equal number of Red and Blue marbles.

Which is the completely factored from of xy^3-x^3y

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

Abakery recorded the number of muffins and bagels it sold for a seven day period. for the data presented, what does the value of 51 summarize? a) mean of bagels b) mean of muffins c) range of bagels d) range of muffins sample # 1 2 3 4 5 6 7 muffins 61 20 32 58 62 61 56 bagels 34 45 43 42 46 72 75