<span> D Q</span>
TC<span> = D x P <span>+ ___ x Cp + ____ x
Cs</span></span>
<span>Q 2</span>
TC: Total Cost
P: Price per unit
Q: Quantity
Cp: Cost of issuance of a purchase order
<span>Cs: storage cost per unit</span>
Answer:

Step-by-step explanation:
So, we started out with 128 ounces of milk.
Each day, Joann drinks 14 ounces of milk.
Therefore, the amount of milk left over after x days is 14 times x subtracted from 128.
Therefore, our function is:

And we're done!