So, a resting pulse rate for 79 is perfectly normal. Conditioned athletes might have a much lower resting pulse rate. 100bmp and higher is considered tachycardia, although for some people, this could just be normal.
A. One space after a colon. There is a traditional American typing practice, favored by some, of leaving two spaces after colons and periods. This practice is discouraged by the University of Chicago Press, especially for formally published works and the manuscripts from which they are published.
While typewriters may have encouraged two spaces after a period, the idea that the practice started with those machines is a touchy subject. In fact, it turns out that double spacing likely predated the advent of the typewriter by more than 100 years.