Answer: B sorry if im wrong
Step-by-step explanation:
9 is added to both sides of the equation then you would combine like terms
Since both of the equations equal Y can substitute one for the Y and say that
X-1=3x+3
-4=2x
-2=x
143o
interior angles of a triangle always add up to 180o
V=(7*6)/2 *8 the third option
you multiply the height with the base of the triangle and you get the area of the base of the prism so you multiply it with the height of the prism to get the volume
