What is an expression with at least six terms that simplify to 9x + y+ 6

Use set builder notation to represent the following set: { -3, -2, -1, 0}

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 0.000008 meters in scientific notation