Car a gets 25 miles per gallon and costs $13,000. car b is a hybrid that gets 45 miles per gallon, but costs $25,000. assume you drive 15,000 miles per year and that gas will cost $4 per gallon for the foreseeable future. how many years will it take for car b's better fuel economy to outweigh its higher initial cost?

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