A term paper weighing 1 lb., 4 oz. is mailed at the rate of $0.45 per ounce. Find the cost of mailing the term paper.

There are 8 oz in a pound (lb.) So, if there is 1 lb (8 oz) and 4 oz, then you have a total of 12 oz. Since it costs $0.45 per ounce, then you would multiply 12 times. 45. After that, you would convert your answer to money by adding a dollar sign and a zero after the last number.

Work:

12*0.45=5.4

5.4=$5.40

Final Answer: $5.40