The cost per unit ounce is obtained by computing the quotient:
Where:
• c is the cost per unit ounce,
,
• C is the cost,
,
• N is the number of ounces that you get for C.
In this problem we have:
• C = $5.19,
,
• N = 16.8 ounces.
Computing the quotient, we get:
dollars per ounce.
Answer: B. $0.31