Question

please answer this 6 th question guys....
find the number that should be .....
question

Answer 1

hello friend here is your answer

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sorry , can't write on paper

81= 3⁴

$3 { }^{ - 5} \times x = 3 {}^{4} \\ x = \frac{3 {}^{4} }{ \frac{1}{3 {}^{5} } } \\ x = 3 {}^{5 + 4} = 3 {}^{9} = 19683$
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Answer 2

hope thia helps you .. .