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13 January, 16:55

An international calling plan charges a rate per minute plus a flat fee. A 10-minute call to France costs $3.19. A 15-minute call to France costs $4.29. Write and solve a linear equation to find the cost of a 12-minute call to France

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  1. 13 January, 19:07
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    y = 0.22 (12) +.99 = 3.63

    A 12 minute call will cost $3.63
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