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my discord is AdanaIsTheBaddie

Step-by-step explanation:

78

Step-by-step explanation:

the five numbers are:  81, 88, 69, 65, 87. we know that to calculate the mean, you add all of the numbers together, and then divide by the number of numbers (hope that makes sense). So to calculate the mean of

81, 88, 69, 65, 87, we can add them all together first, and get 390. since there are 5 numbers we wish to calculate the mean of, we will divide 390 by 5 to get our answer, 78

step-by-step explanation:

in the absence of parentheses, i will have to make some assumptions:   i interpret your (3x+5/y^6)(4y^3/5)​ to mean:

3x + 5     4y^(3/5)       (3x + 5)(4)

* =

    y^6             1               y^(6-3/5)

if this is not what you expected, repost your question using parentheses to indicate whether you meant

4y^3

    or   4y^(3/5)

    5