Respuesta :
Online banking with auto-payment saved you $160.
Data and Calculations:
Total fees for forgetting to pay monthly statements = $60 ($35 + $25)
Penalty on credit card = $60 ($30 x 2)
Penalty on interest rate from 8% to 18% = 10%
Increased interest expense = $40 ($400 x 10%)
The total savings through online banking with auto-payment = $160 ($60 + $60 + $40)
Thus, online banking with auto-payment saved you $160.
Learn more about online banking and penalty on credit card here: https://brainly.com/question/2772610 and https://brainly.com/question/2808739