Question 1110367
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Since the function gives the cost in hundreds of dollars, the limits are 4100 and 6060.  So<br>
{{{4100 <= 14x+180 <= 6060}}}
{{{3920 <= 14x <= 5880}}}
{{{280 <= x <= 420}}}<br>
The number of items that can be produced with a total cost in the given range is between 28,000 and 42,000.