In a group of 34 students, 11 study both Art and Biology. 15 study Biology but not Art. 4 study neither subject. Given that a randomly selected student studies Art, what is the probability the student studies Art and Biology?

If a baby uses 15 diapers in 2 days how many diapers will the baby use in a year

Sheila wants to bake six muffins but the recipe is for 12 muffins . this means you only need half of the ingredients listed how much of the of each ingredient does she need? one cup and banana chips ,7 tablespoons oil , two eggs, 3/4 cups flour 1/4 cup walnuts show all you work and justify your answer using a baby toulmin.

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?