A cell phone plan costs ​$23.80 per month for 400 minutes of talk time. It costs an additional ​$ 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 6 months. The total cost for all months is ​$225.48 Write and solve an equation to find the number of minutes of talk time you use each month.