How do u do these 4 i need to make them a decimal

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

Which number line represents the solution set for the inequality -1/2x> 24?

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?