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A phone company charges 10 cents per min...

A phone company charges 10 cents per minute for the first 3 minute of a call and 10 -c cents for each minute thereafter. What is the cost, in cents, of a 10 -minute phonecall?

A

`100c+70`

B

`30+7c`

C

`100-7c`

D

`100-70c`

Text Solution

Verified by Experts

The correct Answer is:
C
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