Which of these is an equivalent expression for 2-3 that uses positive exponents?

The answer is C. 

In order to make an exponent positive, you just switch it to the opposite part of the fraction. So, for example, 

x^-3= 1/x^3

or 

1/x^-5 = x^5/1

You just switch it to the opposite part of the fraction, and make the exponent positive.

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Step-by-step explanation:

it would be a on edgenuit y

the diagram below is your final answer

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step-by-step explanation: