2. Ken mails three packages at the post office that weigh 8.1, 8.5, and 8.9 pounds. The post office that Ken uses rounds the weight of a package to the nearest pound to determine the price of shipment. It costs $2 to mail a package that weighs 8 pounds and $2.75 for packages that weigh 9 pounds.
a. How much did Ken pay to ship each package?
b. Ken has $7.25 in his wallet in cash. Use subtraction to determine whether Ken has enough to mail the three packages and how much extra money he has or needs.
Answer:

Question

2.	Ken mails three packages at the post office that weigh 8.1, 8.5, and 8.9 pounds. The post office that Ken uses rounds the weight of a package to the nearest pound to determine the price of shipment. It costs $2 to mail a package that weighs 8 pounds and $2.75 for packages that weigh 9 pounds. 
a.	How much did Ken pay to ship each package?
b.	Ken has $7.25 in his wallet in cash. Use subtraction to determine whether Ken has enough to mail the three packages and how much extra money he has or needs.
Answer: