Question

half the difference of z and 9

Explanation:

Step1: Find the difference of Z and 9

The difference of \( Z \) and \( 9 \) is \( Z - 9 \) (assuming \( Z>9 \); if \( 9>Z \), it could also be \( 9 - Z \), but the expression "half the difference" can be represented as \( \frac{1}{2}|Z - 9| \), but usually, in algebraic expressions without absolute value specified, we write \( \frac{1}{2}(Z - 9) \) or \( \frac{Z - 9}{2} \)).

Step2: Take half of that difference

To take half of the difference \( Z - 9 \), we multiply it by \( \frac{1}{2} \), so we get \( \frac{1}{2}(Z - 9) \) or \( \frac{Z - 9}{2} \).

Answer:

\( \frac{1}{2}(Z - 9) \) (or \( \frac{Z - 9}{2} \))