class projects. Her combined homework grade was 70. The five regular tests count for 60%

of the final grade, the final exam counts for 10%, the project counts for 15%, and homework

counts for 15%. What is her weighted mean grade? What letter grade did she earn (A, B, C, D,

or F) ? Assume that a mean of 90 or above is an A, a mean of 80 to 89 is a B, and so on.

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