Mathematics, 23.04.2021 01:30 lilybear1700

It costs Polly $90 to have an alarm system installed in her house. She pays a monthly service fee plus tax of 8% of her monthly bill. After 6 months, Polly had paid a total of $271.44
for her service fee, taxes, and her initial installation. What is Polly's monthly service fee
not including taxes?

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It costs Polly $90 to have an alarm system installed in her house. She pays a monthly service fee...