lanaiheart7
lanaiheart7
22.11.2020 • 
Mathematics

A phone company offers two monthly plans. Plan A costs 12 plus an additional 0.15 for each minute of calls. Plan B costs 29 plus an additional 0.10 for each minute of calls. For what amount of calling do the two plans cost the same? What is the cost when the two plans cost the same?

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