(4.51 - 5.32 )(5.17- 6.57) what's the answer with solution pleaseee

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

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?

Klmn and pqrs are similar trapezoids. which side of pqrs corresponds to lm