Carol H. answered • 02/09/18
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C(m) = .1m + .9
6.90 = .1m + .9
6 = .1m
60 = m
Matthew C.
asked • 02/09/18\where m is the length of the call in minutes. C(m) = 0.1m + 0.9 Determine how long a phone call can be made for $6.90.
\where m is the length of the call in minutes. C(m) = 0.1m + 0.9 Determine how long a phone call can be made for $6.90.
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