I think first sentence and last two. The first one is appealing to a pet owner's feelings of wanting to be a good pet owner and the merchant is using that to persuade them to buy the biscuits. The last two sentences are appealing to a person's feelings of loneliness or being left out and using that to convince you to buy a pool. They both appeal to people's emotions in order to persuade them towards action, that's what it means to use pathos.
URL is where to search for something on the internet
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Explanation: When everyone is equal there will be no one favored over another.
Answer:
the welcome speech will be given by the head prefect
Explanation: