99.....the killer only killed one but i feel this is a riddle that i dont get lol
Answer:

Step-by-step explanation:

-9x-5y=12
C) (2, -6) -18+30=12
The value of 3 would be 3,000.
Why thousands? Well because u have to count from the right, then back, so ones, tens, hundreds, then thousands lands on 3 so hope this helps.