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Mathematics, 23.01.2020 08:31 iamasia06

Suppose a 9 minute overseas call costs $6.48 and a 19 minute call costs $13.68. what is the cost, c, of a call of m minutes duration? write a equation to model the cost.

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Suppose a 9 minute overseas call costs $6.48 and a 19 minute call costs $13.68. what is the cost, c,...
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