Kevin and Christy saved money for their field trip. Kevin saved the same amount each week. The total amount Kevin saved at the end of every two weeks is shown in the table below. KEVIN SAVINGS
Weather
(weeks)
Total Amount Saved
2
$ 46
4
$ 92
6
$ 138

Christy's savings can be modeled using the equation y = 26x, where y is the total amount of money saved in x weeks. Which statement correctly compares the rates at which Kevin and Christy saved money?
A) Christy saved $ 3 a week more than Kevin.
B) Kevin saved $ 10 a week more than Christy.
C) Christy saved $ 18 a week more than Kevin.
D) Kevin saved $ 20 a week more than Christy.