So my homeroom teacher cuss this boy out for saying yeah instead of yes like girl so extra why is she even a teacher if sometimes we have to help her with the work she be like I don’t be knowing this myself then why you teaching us this then I’m good because I get good grades but she extra

How does reflecting or rotating a figure change the interior angles of the figure?

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 expressions equal 9 when x=4 and y=1/3 a. x2+6y b. 2x + 3y c. y2-21x d. 5 (x/2) -3y e. 3x-9y