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A teacher has decided to implement a curve to calculate grades for her class. Her class average grade is a 65, with a standard deviation

A teacher has decided to implement a curve to calculate grades for her class. Her class average grade is a 65, with a standard deviation of 20 points. The data is normally distributed. Her curving scheme is as follows:

What is the minimum grade required in order to receive a grade of B?[There are multiple steps here,question is asking for grade]

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