Mr. Loza had to stop at 7-Eleven for gas on his way to school. He bought four gallons of gasoline for $16.80. How much is the price per gallon? 1. Explain how you find your answer and what that unit rate means.

2. How many gallons could he get for $40?

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.