What is x in the segment addition problem of 2x + 23 + 7 = x + 22?

What is the prime factorization of 195

Find the greatest common factor of the followig monomials 46g^2h and 34g^6h^6

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