A local reporter decides to randomly survey 23 residents to see if they will attend this year's county fair. Based on past years, they know that 17% of residents attend the county fair. We are interested in the number of residents (out of the 23) that will attend the county fair. What is the probability that 5 residents will attend the county fair?​

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