A number cube has sides numbered 1 through 6. The probability of rolling a 2 is 16. What is the probability of not rolling a 2? Enter your answer as a fraction, in simplest form, in the box.

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap