To evaluate \( 6.9 - 2^0 \), we first need to calculate \( 2^0 \).
Any number raised to the power of 0 is 1. Therefore:
\[ 2^0 = 1 \]
Now substitute back into the expression:
\[ 6.9 - 2^0 = 6.9 - 1 \]
Calculate this:
\[ 6.9 - 1 = 5.9 \]
So the value of \( 6.9 - 2^0 \) is \( 5.9 \).
The correct response is:
5.9