Find the selling price. where necessary, round to the nearest cent. regular price: $9.99 percent of markup: 60% a. $15.98 c. $100 b. $60.21 d. $16.99

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