If you are adding 2 negative numbers, will your answer be positive or negative?

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

Triangle knm is what is true about the sides of knm

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