The expression represents the cost of Janelle’s cell phone bill, where m represents the number of minutes of use.
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Here’s a photo on how to do it! If you need help in more problems like this use a website called Symbolab!! It’s really helpful!!
keeping in mind that 4 months is not even a year, since there are 12 months in a year, 4 months is then 4/12 years.
let's assume is simple interest.