1.The answer would be D. 0.28 per lb per year.
2. The answer would be C. between 10 and 20 minutes.
Hope this helps:)
Hey there!
The answer to your question is 
Given:

First, we can start by adding like terms. The following are like terms:



Now, we can add these pairs together, giving us:



Now, add all this together, and we get our answer as:

Have a terrificly amazing day!
Answer:
(b+1)(b²+1)
Step-by-step explanation:
42 is the answer
merry Christmas and a happy new year :)