Write as an equation: patrick age increased by 8 years is 18 years

What are “like terms”? why can we only add like terms?

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

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?