Mateo has drawn a line to represent the parallel cross-section of the triangular prism. Is he correct? Explain.

No

Step-by-step explanation:

A triangular prism has a uniform cross-section.A parallel cut of the solid will produce a cross section which is parallel to the triangular base.

A right prism contains uniform cross-sections, meaning the area of each cross-section is the same.

In this case, the position of the line indicating a cut will not produce polygons congruent to the base.

the 3rd option is right

step-by-step explanation:

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.