The expression is n5.
\Substitute n = 7 in the expression
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(Substitute n = 7)
Base is 7 and the exponent is 5.
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means 7 multiplied together 5 times.

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Substitute n = 0.4 in the expression
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(Substitute n = 0.4)
Base is 0.4 and exponent is 5.
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means 0.4 multiplied together 5 times.

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When n = 7 the solution is 16807.
\When n = 0.4 the solution is 0.01024.