#22 im not sure what the first step is

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.

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

Wrote and expression for the difference of p and 4