Find the area of a rectangle with a length of (5x+2) and width of (2x-1)

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

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.

Pls brainliest will be awarded if answer is correct