Please help!! Mr. White is renting a van for one week and a few additional days(d). he does not have to pay a per-mile fee. Evaluate the expression 380+110d to find how much he will pay for a 12-day rental.

What is the missing constant term in the perfect square that starts with x^2 -20x

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?