Help pls this is law of exponents

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3

Write 5 in the form of a/b using integers to show it as a rational number