Can someone pls help its due at 10:00

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

The formula for the lateral area of a right cone is la = rs, where r is the radius of the base and s is the slant height of the cone. which are equivalent equations?

An equation in slope-intersept form the lines that passes thought (-8,1) and is perpindicular to the y=2x-17.