I believe the answer is A. 40.
-12.405=-12 405/1000= 12 81/200
-1, maybe or maybe not this is my first time doing this
Answer:
Option A - 
Step-by-step explanation:
We have given the expression 
We have to find the value of the expression ?
Solution :
Step 1 - Write the expression

Step 2 - Applying symbol rule i.e. multiplication of positive into negative is always negative, 

Step 3 - Solve

Therefore, The value of the expression is 
So, Option A is correct.
Y=-4x+6
or if you need it in the original format
4x+y-6=0