Find the unknown side (w) of the rectangular solid. Please help..

Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x

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