Whats the percent increase from $6 to $66

How to write 3 tenths and 5 tenths as a decimal

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

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?