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a store had a total of 8,721 customers on friday, saturday and sunday.
this store had exactly 3,704 customers on saturday
388 more customers on sunday than saturday exactly how many customers did the store have on friday?
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Customers on saturday: 3704.
Customers on sunday: 3704 + 308 = 4012.
Customers on friday: 8721 - 3704 - 4012 = 1005. ANSWER
Solved.