Answer:
140 hats is the answer i guess
2x + 22 = 4x + 12
4x + 12 = 2x + 22
4x - 2x = 22 - 12
2x = 10
x = 5
Set them equal or graph.
x= 2.618
I'm not too sure, as i'm learning this at the moment too. correct me if i'm wrong but wouldn't both be (infinity, infinity) ?? since there's arrows meaning its infinite
1. +12. A profit would be giving you money not taking away.
2. -1,440. This is below sea level so your answer would be negative.
3. -22. It is below 0 so the answer would be negative.
4. +31. This is a gain so it would be positive.