What is an equation for the line that passes through the points (-2, 3) and (2, 1)

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

List the sides of δrst in in ascending order (shortest to longest) if: m∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12°

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.