Joyce started the month with $2.437 in her checking account . she paid 2 bills to taling $387. she made one deposit for $150. how much money does she have in her bank account now?

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.