Ninety percent of what number is 45

For the equations below which statement is true ? -2x=14 6x=-42

Which type of graph would allow us to compare the median number of teeth for mammals and reptiles easily

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.