Pre-Calculus
Which Expression is a sixth root of -1 + i sqrt 3?

Answer this question, only if you know the answer. 30 points and brainliest!

The line containing the midpoints of the legs of right triangle abc where a(-5,5), b(1, 1), and c(3, 4) are the vertices.

Me asap! what is the slope of this line? enter your answer in the box.