B. 4
3n - (2 + n)
3(4) - (2 + 4)
12-6
=6
Y = mx + b
4 = 6(1) + b
b = -2
equation
y = 6x -2
Answer:
The area of the two-dimensional cross section is 
Step-by-step explanation:
we know that
The two-dimensional cross section that is parallel to face ABC is a triangle congruent with the triangle ABC
Therefore
Calculate the area of triangle ABC

we have that
Triangles ABC and DEF are congruent
so


substitute

The answer would be 3164 it is the greatest