Answer:
6 pounds lost
Step-by-step explanation:
5+4 is 9 9-3 is 6 which means that in total, 6 pounds was lost
Yes. They both mean the same thing.
5% of 200 is 10, after six months, so total of $60? not sure though.
The answer you are looking for is 2 4/5. Hope this helps.

Radius / diameter as a length cannot be negative, that's why '-16' is wrong.