Find the missing measurement

PLEASE HELLLPP

Write the percent as a fraction or mixed number in simplest form. 0.8%

An expression for the average of x 2x and 3y

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.