(A) Total cost to use cell phone plan for 1 month is $250.
(B) The total cost of using cell phone for month is 200+50.
Step-by-step explanation:
Given information:
The starting cost of the cell phone is $200
Monthly charges of the cell phone is $50
(A) In the first month
The total cost will be the sum of startup fee and the charge of one month
Hence, the total cost to use cell phone plan for 1 month
Total cost to use cell phone plan for 1 month is $250.
(B)The cost of using cell phone for month :
It will be the sum of cost of cell phone and the monthly cost multiplied by the number of month phone used:
Here, the number of month is
Hence the cost :
Hence , the total cost of using cell phone for month is 200+50.
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