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Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

Find the area of the regular hexagon if a side is 20 cm.

What is the value of the discrimination for the quadratic equation 0=×2+2+×2