HELPP WITH THUS please

What is the product of the radical expression. (7-2square root) (8+2 square root)

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

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