If m∠FBC = (10x –9)°, m∠CBE = (4x + 15) °, find m∠FBE

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 the sum of the first 8 terms of the geometric series

Afair die is cast four times. calculate the probability of obtaining exactly two 6's round to the nearest tenth of a percent