If brm is congruent to kyz how can you justify that yz is congruent to rm

Triangle BRM = Triangle KYZ

CPCTC ( corresponding parts of congruent triangles are congruent)

if two triangles are congruent then all of their angles and sides are congruent

Make sense?

answer: there are x+184 pages in olivia's book.

step-by-step explanation:

let the total number of pages in the book which olive has already read be x.

then if olive has 184 pages left to read, then the total number of pages are in olive's book= pages she has read+pages she has left to read

therefore, the total number of pages in olivia's book=

hence, there are x+184 pages in olivia's book.

a is the right answer