Mathematics of personal finance semester 2 1.1.3 quiz car leasing I don't understand any of this! It's so confusing

Classify the following triangle check all that apply

What is the least common factor of 6 and 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