How do you reduce 71.125 by 12.2 lb

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3

Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )