Question

the Vikings play 36 games this year at midseason they had won 16 games. How many of the remaining games must they win in order to win at least 80% of all their games

Answer 1

80% of their games are 28.8, or 29 games (since they need to win at least 80%). They have already won 16. 29-16 is 13.

Therefore, they need to win 13 more games.

P.S. The midseason statement is irrelevant.