Can someone my math starts at 1st (11 and 12)

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.

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

Matt had 5 library books. he checked out 1 additional book every week without retuening any books. whats the matching equation