Answer: The required rate = 0.64 per pounce.
Explanation:
We are given that,
Postal service charge = $10.30 per pound.
As we know, 1 pound = 16 ounces.
So, Postal service charge = $10.30 per 16 ounces.
Postal service charge


Hence, the required rate = 0.64 per pounce.