Shane is ordering supplies for his concession stand. He believes 1 out of 4 people will buy cookies. If 200 people
visit his concession stand and there are 8 packs of cookies
per box, how many boxes of cookies will he need to order?

Dana wants to identify the favorite professional baseball team of people in her community. she stands outside a local sporting goods store and asks every other person who enters, "what is your favorite professional baseball team? " will the results of her survey be valid? explain.

Follow these steps to derive the trigonometric area formula.

What method did she use to collect data?