How does using a square model help you find the square root of a non perfect square?

In the coordinate plan (-6,9) b (3,9) c (3,3) def is shown in the coordinate plan below

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?

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?