Bella's cell phone costs $18 per month plus 0.15 for every minute she uses the phone . last month her bill was $29.25. for how many minutes did she use her phone last month

Respuesta :

She was o it for 75 minutes

SJ2006

$29.25 - $18.00 = $11.25

So, it would be: 11.25/0.15 = 75

She used it for 75 minutes.