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Learning Task 2: Choose Wisely, Choose Me! Solve the following problems completely.

1. If there are 12 teams in a basketball tournament and each team must play every other team in the eliminations, how many elimination games will there be?

2. If there are seven distinct points on a plane with no three are collinear, how many different polygons can form?

3. How many different sets of five cards each can arrange from a standard deck of 52 cards?​