вычислите во сколько раз пропан легче или тяжелее воздуха . какова масса в граммах 1 литра пропана (н.у.)

Запишите выражение и найдите его значение:

разность суммы чисел 6704 и 96 и разности чисел 502 и 408

I think that the worst place to live would be in a big city. I think that, especially for a family, the only reasonable way to live is to get food locally within a small community that is working together.
There is also such a contrast between cities and smaller towns and villages.One of the reasons we moved from a small with 150,000 people to a smaller town of 10,000 was that the scale and complexity of the place seems so much more manageable.