The sum of any two rational numbers is a rational number. true or false

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

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?