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Title: An electrician charges a flat fee of $90 for a home service call. In addition he charges $25 for ... Post by: majarm on Nov 26, 2017 An electrician charges a flat fee of $90 for a home service call. In addition he charges $25 for every 20 minutes as labour cost. Draw a graph to show the total charge against the time in hours. Calculate the slope of the line.
Title: Re: An electrician charges a flat fee of $90 for a home service call. In addition he charges $25 for ... Post by: josan on Nov 26, 2017 Content hidden
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