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maxonik [38]
3 years ago
7

This is the call plan for Robert's cell phone:

Mathematics
2 answers:
Oduvanchick [21]3 years ago
5 0
$0.20 times 30 minutes = $6.00
So $6.00 plus the $15 charge each month = $21.00
butalik [34]3 years ago
4 0
To answer this, first make an equation representing the data: 

15+ 0.20X= Bill

now plug in data you know:

15 + 0.20(30)= bill

and finally solve it: 
Bill= $21.00

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Have a great day and stay safe !

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