Which of the following is a simplified form of the expression -2(x - 9) - x?

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.

Sum is 17 and their difference is 3

In the geometric progression –3, 12, −48… what term is 3,072?