I require assistance Fosters bought four adult tickets and three children's tickets for $72. If x represents adult 8. The Presleys bought two adult tickets and five children's tickets to the circus for $64. The tickets and y represents children's tickets, the situation can be represented by the system of equations shown below. Y=8

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