in 1 millimeter, there are 0.00109361
So in 2 mm, there are 2 × 0.00109361 = 0.00218722 yards
or do proportions:
[tex] \frac{1mm}{0.00109361yd} [/tex] = [tex] \frac{2}{y} [/tex]
Cross multiply:
2 × 0.00109361 = y
0.00218711 = y
0.00218722 yards are in 2 millimeters.