4) what is the slope of the line graphed by the equation y = (-⅓)x - 3?

(a) (-1/3)
(b) -3
(c) (1/3)
(d) 3

SImple,

this line is in the form of y=mx+b..which means that m=slope and b=y-intercept..

Thus, the slope for this line is.... 

Thus, your answer, A.

Y=mx+b
m=slope
y=-1/3x-3

m=-1/3
slope=-1/3

answer is A

Cd is the perpendicular bisector of both xy and st, and cy=20.find xy

Answer d; a supplementary angle = 180°, so if that angle = 150°, y would = 30°.