Final answer:
The initial value is $15.
Step-by-step explanation:
To calculate the initial value, we need to consider the delivery fee and the cost per sandwich.
The delivery fee is a one-time charge of $10. Then, for each sandwich, there is an additional charge of $5.
So, the initial value can be determined by adding the delivery fee to the cost of one sandwich.
Initial Value = Delivery Fee + Cost per Sandwich = $10 + $5 = $15.