Maps are especially useful for showing aspects of the world that cannot be

What is the difference between emigrate and immigrate? ?

There are 4 red balls, 6 white balls, and 3 green balls in a bag. if one ball is drawn from the bag at random, what is the probability that it is not white?

Find the equation of the line passing through the point (–1, 5) and perpendicular to the line 3x + y = 4.