Please help I don’t know the answer

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account

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.

An isosceles trapezoid was broken into a rectangle and two triangles. what are the base and height of one of the triangles?