THIS IS THE LAST QUESTION I NEED TO PASS

If two triangles are similar, that means their side lengths are proportional, so we get the equation
[tex]\frac{AB}{AC} =\frac{FG}{FH} \\\frac{x}{17} =\frac{16}{20} \\20x = 16 * 17\\x=13.6[/tex]
Thus x = 13.6.
Hope that helped!