Answer:
5xy
Step-by-step explanation:
x and y can only go into both into once
-2/5=-.4
-7=-7
These two are repeating decimals.
3/9=.3333334
11/12=.9166667
Since the triangles are similar, then 32 = x+7 those two angles are too
solve for "x"
now using proportions

solve for JK

solve for KG
the scale factor of the perimeter of both triangles is just the same as the ratio of the sides, or