A cell phone plan costs $20.70 per month for minutes of talk time. It costs an additional $0.05 per minute for each minute over 800 minutes. To get e-mail access, it costs 20 % of the price for 800 minutes of talk time. Your bill, which includes e-mail, is the same each month for 8 months. The total cost for all 8 months is $223.52. Write and solve an equation to find the number of minutes of talk time you use each month.
You use _ minutes of talk time each month.
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