To represent how much money Judy will have in total after saving for \( d \) days, we can create an equation based on her initial amount and the amount she saves each day.
Judy starts with $100 and saves $5 per day. Therefore, the total amount of money Judy will have after \( d \) days can be expressed with the following equation:
\[ \text{Total amount Judy has} = 100 + 5d \]
So, the equation representing how much money Judy will have in total after saving for \( d \) days is:
\[ T = 100 + 5d \]
where \( T \) is the total amount of money Judy has after \( d \) days.