6. let’s say you start jogging every day, burning an additional 300 calories a day. at this rate, how long would it take you to lose one pound of body fat?

Because 3,500 calories equals about 1 pound of fat, you need to burn 3,500 calories more than you take in to lose 1 pound. It would take about 11 days to burn one pound of body fat if you also take in around 3,500 calories less than normal within that 11 day span.