You can pick more than one!

2) and 3)

Step-by-step explanation:

Note: 1), 2), 3), and 4) are the answer choices from top to bottom.

We know that BC is 8 units long.

Reflections will preserve angles and lengths, so 1) is immediately wrong, and 2) is right. We also know that 3) is right.

After a reflection across the x-axis, the x-value of point A' will not differ from point A, so 4) is wrong.

So, the answer is 2) and 3) and we're done.

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.

i belive those are the ones that are under 90 degreese.