Which expression is equivalent to 3 square root 216x27 ? 6x3 6x9 72x3 72x9

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.

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Which of the following equations is equivalent to x/3-6/x=1