Answer:
A
Step-by-step explanation:
1.020 is less than 1.200
The triangle A B C will be the image of triangle of A B C in origin (0,0)
Isolate x
3x + 4x - 8 = 6
+8 +8
3x + 4x = 6 + 8
Simplify
7x = 14
Divide both sides by 7
7x/7 = 14/7
x = 2
the answer is 400-8=394.