Tuesday
September 2, 2014

Homework Help: math

Posted by Thomas on Friday, May 30, 2014 at 1:52pm.

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

a. 200-20c
b.100c+70
c. 30+7c
d.100-7c
e. 100-70c

please answer and explain

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