Challenge A cell phone plan costs $25.90 per month for 400 minutes of talk time. It costs an additional $0.08 per minute for each minute over 400 minutes. To get e-mail access, it costs 30% of
the price for 400 minutes of talk time. Your bill, which includes e-mail, is the same each month for 9
months. The total cost for all 9 months is $359.19. Write and solve an equation to find the number of
minutes of talk time you use each month.
Let m represent the number of minutes over 400 minutes each month. Which equation represents the
given situation?