Which expression is equivalent to 6m + (m – 2)(m + 7) + 3?

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

Consider the first four terms of the sequence below. what is the 8th term of this sequence?

What is the value of x? assume that the line is tangent to the circle.