Do drop ins for dogs include dog walking?

Got a drop in request to feed the two dogs and walk them. It's 20$ per dog, each day.

Is that an ok price? Should I charge extra since I'm also walking them.

Sorry if this is a silly question. I'm still new to rover itself and I don't want to under charge myself.

One of the dogs is an Australian Shepard which makes me a little concerned because they're such high energy dogs.