Math
posted by Shihara .
TWO OBSERVERS, WHO ARE 2 MILES APART ON A HORIZONTAL PLANE, OBSERVE A BALOON IN THE SAME VERTICAL PLANE WITH THEMSELVES.FIND THE HEIGHT OF THE BALOON, (A) IF IT IS BETWEEN THE OBSERVERS (B) IF IT IS ON THE SAME SIDE OF BOTH OF THEM

First, please do not use all capitals. Online it is like SHOUTING. Not only is it rude, but it is harder to understand. Thank you.
Inadequate data. Since they are all on the same horizontal plane, they are all at the same height, whatever that is.