Select three ratios that are equivalent to 8:208:208, colon, 20.

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

What number should be added to both sides of the equation to complete this square? x^2-10x=7

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?