Answer:
m<1 =118 ~trust me I just finished this section
One equation with 3 variables cannot be solved in the sense that you can find "the" 3 values for x, y and m. You can observe that this equation represents a family of straight lines with varying slope (depending on m).
I think the answer is KB//DM because they are on different lines and will never touch, they go sideways for eternity.
Working backwards, we first subtract 1. That is 228. Next you divide 228 by 4, which is how many parts they have in all. That is 57. 57 times 3 is how much ben has. Your answer is 171.