what indication is there that religious tolerance was already fairly common in new york at the time Kalm made his visit

Nearly three-quarters of the Americans believe that many faiths besides their own can lead to salvation.

Explanation:

Religious tolerance can be described or explained in two ways, that is, to people or to country.

When it is to be explained based on people, it is allowing people to practice other religion. And based on country view, it is a situation whereby a country allow other religions to exist in the country apart from the one that is being practiced in the country.

In this case, most of the Americans have the understanding that salvation can also come from other religions different from their own despite the fact that a majority of Americans say religion is very important to them.