X(+1M) + (–2N) = 0 What does x have to be?
(+2M) + y(–1N) = 0
What does y have to be?
x(+2M) + y(–3N) = 0
What do x and y have to be? x =
and y =

- both b and d.

-since b and d are the closest coastlines then that makes it the most affected.

< 3

the answer to your question is c.

if you read the house of usher you should know that the house was haunted

it's filtration, but this is an assumption so my apologies if i got this