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24 October, 01:51

If Anna's test grades are 66, 90, and 99, what is her test average?

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Answers (2)
  1. 24 October, 01:58
    0
    The average is 85

    Step-by-step explanation:

    To find the average, add up all the scores and divide by the number of scores

    (66+90+99) / 3

    255/3

    85
  2. 24 October, 02:12
    0
    85

    Step-by-step explanation:

    You have to add up all the numbers

    60+90+99=255

    Then divide by the number of numbers you added together

    255 divided by 3 equals 85
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