Solve for w.
6/9 = w/12
simplify your answer as much as possible.

Multiply both sides by 12, which becomes (12*6)/9 = w as the the 12 cancels out on the right side. This becomes 72/9 = w and since 9 goes into 72 8 times, 8 = w

You need to include the original coordinates of the triangle to answer this. and how much does it translate (move left right up down)