1) + $12, since it is a profit
2) -1440 ft, since it is below the sea level
3) - 22°F, since it is below
4) + 31 yards, since it is a gain.
I don’t understand the equation but you can use Photomath to solve any equation you need to solve. It’s and app for free.
The simplified version is 1 5/22
AAS(angle-angle-side), SSS(side-side-side), SAS(side-angle-side), ASA(angle-side-angle), and HL(hypotenuse-length)