Tom wanted to buy a game for $65 dollars. There is a 20% discount on the game. What will the final cost be with 5% tax added?

Suppose you are analyzing the relationship between time and distance given in a table, and there are 4 values for each quantity. you divide distance 2 minus distance 1 by time 2 minus time 1.you then divide distance 4 minus distance 3 by time 4 minus time 3 and get a different answer. what can you say about the relationship?