3. The expression below represents the total cost in dollars for a vase of flowers that includes roses, carnations, and daisies. The variables can be defined asr for
roses, c for carnations, and d for daisies,
2r + C +0.50 + 8
How many terms does this expression have?

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?