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math

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compare two cell phone companies and determine which is the better deal. Needs to be in a y=mx+b equation for each company.
company a $40 base rate plus every minute costs .05
company b base rate $30 plus every minute costs .07
based on 800 minutes

PLEASE HELP ME ASAP!

  • math - ,

    a = 800(.05) + 40
    a = $440

    b = 800(.07) + 30
    b = $590

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