How do u use equivalent rates in the real world

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Find the values of y: 3y^3(y^2+ 2/3y)=0

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?