Answer : The expression for the given statement is
![a-25](https://img.qammunity.org/2019/formulas/mathematics/middle-school/uybp5t1rr5496lyc1chasth2345bq232qu.png)
Step-by-step explanation :
We are given a statement :
"your aunt's age a minus 25"
Let the age of aunt be considered as 'a'
From the given statement, we conclude that
'Minus' in the above statement means subtract (-) operation.
Thus, the expression for the given statement is
![a-25](https://img.qammunity.org/2019/formulas/mathematics/middle-school/uybp5t1rr5496lyc1chasth2345bq232qu.png)