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the total cost of gary cell phone plan includes a one time cost for a phone plus a monthly fee this table shows the total cost if gary's cell phone plan as it accumulates from month 1 though month 5 what is the monthly fee for gary's cell phone plan

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Answer:

20$ increasing every month

Step-by-step explanation:

This problem is a slope problem, so his cell phone plan increases by 20$ every month, so solve for slope

[tex]\frac{120-100}{2-1} =\frac{20}{1} =20[/tex]

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