A manufacturer of tennis rackets finds that the total cost 
(in dollars) of manufacturing 
rackets/day is given by 
varid="variable_id_field" variablename="impvar_d5d1460973ce46d18ae5f0bcd" />. Each racket can be sold at a price of 
dollars, where 
is related to 
by the demand equation 
.
?
If all rackets that are manufactured can be sold, find the daily level of production that will yield a maximum profit for the manufacturer.
?
__________ rackets/day
Fill in the blank(s) with the appropriate word(s).
14,000
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