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

1. Those dogs' paws have mud all over them. (Plural possessive)

2. All the books' pages were all over the place. (Plural possessive)

The second sentence would be better with "were scattered around."

* Please ask only one sentence per question.