Solve the problem.To get a B in biology, Katie must have a mean score of 81 on five lab reports. Scores on the first four lab reports were 90, 77, 76, and 83. What is the lowest score that Katie can get on the last lab report and still receive a B?

A. 82
B. 75
C. 79
D. 81


Answer: C

Mathematics

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A.

B.

C.

D.

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A. 624 hours B. 12 hours C. 24 hours D. 22 hours

Mathematics