Which box-and-whisker plot shows the scores of ten students on a mathematics exam?89, 78, 93, 90, 75, 81, 91, 80, 89, 79

A box-and-whisker plot is shown above a number line that extends from 70 to 100 with 1 unit markings. The box extends from 79 to between 90 and 91 with a division at 89. There is also a point marked at 89. The whisker on the left extends from 75 to 79. The whisker on the right extends from between 90 and 91 to 93.

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the answer for this question is 38

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.