-10 + 13s + 7p -4s - 3p + 15 simplify it ASAP PLEASE

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33

Find the distance from the theater to the library. leave your answer in simplest radical form if necessary. 12 √12 74 √74

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.