Closer to 40 times.
1) Since the Theoretical Probability tells us that the chances of getting tails in one flip are 50%
2) If we flip it 80 times we'll have it closer to 50% of those 80 times, i.e. closer to 40 times to get tails.
Not exactly 40 but closer to 40. Because the more we flip it the more we get it closer to the Theoretical Probability