the way to answer this is you have find out coordinates of BC and since i cant see the graph im no help. y will equal whatever you can get from there .
Answer:
Pythagorean theorem 
Step-by-step explanation:

Area of a square = Side × Side
Side = 7x-3
Area of the square = (7x-3) × (7x-3)
= 7x(7x-3) -3(7x-3)
= 49x^2 -21x -21x +9
=49x^2 -42x +9
Answer:
Hamilton appeared he handed Mulligan a gun, took the rope and pulled the cannon toward American lines. Step-by-step explanation:
i looked it up
4875m is miles so 7845552 meters