From left to right, the answers are: 152, D(line e), C(obtuse), 44 degrees.
Now I feel guilty and sleezy. Giving answers alone without explanations
is something I almost never do, because it doesn't help anybody do
anything but cheat. But it's all I have time for right now. If a mod comes
along and decides to delete this because of no explanations, then let him
delete it. It'll serve us right, you and me both.

An expression having five terms which is equivalent to above term is :
see attached picture for #6
10 the inequality would be :
12 inch box is x
15 inch box is y
12x+15y≤84
I wasn't sure what properties the assignment was looking for... Let me know if you have any other questions!