<u>Given</u>:
The given expression is
We need to determine the equivalent number.
<u>Equivalent expression:</u>
To determine the equivalent number, let us solve the expression
Thus, let us apply the exponent rule , we get;
Also, the term 10³ can be written as
Thus, we get;
Dividing, we get;
0.001
Hence, the equivalent number is 0.001
Hence, Option c is the correct answer.