Acell phone plan costs $22.70 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 10% of the price for 400 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 $247.76. write and solve an equation to find the number of minutes of talk time you use each month