Can u help solve this

Giving ad is congruent to bc and angle bcd is congruent to angle adc prove d e is going to ce

12x + 1 = 25 solve the following equation. then place the correct number in the box provided.

Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?