B. (-10, 55)
Step-by-step explanation:
y=-3x-2
5x+2y=15
5x + 2(-3x-2)=15
5x + (-6x-4)=15
-x-4=15
  +4  +4
-x=19, so x=-19
x=-19
y= -3 (-19)-2
y=57-2
y=55
13cm
step-by-step explanation:
(apex)
it would be a on edgenuit y
the diagram below is your final answer