Pluto is approximately 2.7 x 10^9 miles from the sun. venus is approximately 6.7 x 10^7 miles from the sun. approximately how many times greater is the distance of pluto from the sun than the distance of venus from the sun?

a.2.5
b.4
c.40
d.250

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.