There are 225 pieces of cereal and 15 marshmallows in a bowl of cereal. What is the ratio of cereal pieces to marshmallow pieces?​

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.

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

Kayaks rent for $35 per day. which expression can you use to find the cost in dollars of renting 3 kayaks for a day?