The budget for the Valentine’s Day Dance is $550. Lights and Decorations cost $150. The DJ charges $75 per hour plus a one-time business fee of $100. What is the maximum number of hours the school can have the DJ play at the dance?

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