This assignment is due in 15 minutes and this doesn't make sense at all. Please help!

What's the difference between: x≥0 and nonnegative integer. ?

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

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?