Where should the apostrophe be in following sentences 1 Those dogs paws have mud all over them 2 All books pages were place?

Here's where the apostrophes should go in those sentences:

1. Those dogs' paws have mud all over them. (The apostrophe goes after the "s" in "dogs" because it's possessive, showing the paws belong to the dogs)

2. All the books' pages were placed...? (The apostrophe goes after the "s" in "books" because it's possessive, showing the pages belong to the books. The sentence is also missing a word at the end, likely "placed" or a similar action word.)