How can you solve the literal equation y-3x=13

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?

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct

Is there an x intercept in the equation 60*1.15^x