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You earn $40 a data you job selling cellphones. You earn extra $15 dollars for every cell phone you sell. You want to make at least $115 today. Write and graph an inequality that represents how many cell phones you need to sell.

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  1. 4 May, 16:04
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    Cell phones sold=c

    money made=m

    m=15 times c+40

    m=15c+40

    make at least 115

    115≤15c+40

    if we solved

    minus 40 both sies

    75≤15c

    divide both sides by 15

    5≤c

    must sell 5 cell phones at least
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