Simplify 27-{ 9+(12-5)÷4} with solution​

What’s the answer ? use the picture to see the problem

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

Agallon of apple juice cost $7 a pack of eight 4.23oz box of apple juice $2.39 which is a better deal