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36 is 4 9ths of 81.
Vivien Metz ∙
81*4 = 324
sqrt(4/81) = sqrt(4)/sqrt(81) = 2/9
3 to the power of 4 is 81
81 = 3^4
81
3^4 = 81
9^2 is 81 and 3^4 is 81
-81*4/3=-107.999999973
20.25
81 ÷ 4 = 20 with remainder 1