Escreva numa só potência A)5 elevado à 2 ×5 elevado a 7×5 elevado à 4= B)3 elevado à 12 3 elevado à 17= C)(2 elevado à 2)elevado à 3

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.