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Mathematics 20 Online
OpenStudy (anonymous):

David has scored 77 , 69 , 77 , and 95 on his previous four tests. What score does he need on his next test so that his average (mean) is 76 ?

OpenStudy (aric200):

I will not waste my time helping you again as you did not take advantage of my help I was trying to provide on the previous question. Take care and good luck

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