Express an order pair that fact that a 16 line add cost $50

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

What is the point slope form of a line with slope -5 that contains point (2,-1)

Multiply and simplify. 2x2y3z2 · 4xy4x2 how to do?