Aiden took a taxi 21 miles and paid $8.25. The cab driver charges $0.25 per mile after a flat fee. Write an equation to represent the situation. How much would it cost if Aiden needed to take the taxi for 100 miles?

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?