PLZ HELP Five people were added to a performance group who originally had x people in the group. Then, the number of people were doubled because they wanted to have an understudy for each person in the performance. The performance ended up having 32 people. How many people were originally in the performance group?

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