Answer:
ehifhidbviasbeoifoaweilbfjwBFUWGUF
Step-by-step explanation:
next time you answer someone's question with a bunch of random letters just to get the points don't. It rude especially sense you have questions you want answered. Now I could be nice and help you because I know how to solve this and you obviously don't, but I'm giving you the same curtesy as you did me and writing a bunch of gibberish.
There is the answer hope it helpd if you can mark me brainliest
Answer: 
Step-by-step explanation:

Yes, both of your answers are correct.
Since Death Valley is below sea level, the hiker increases altitude before stopping at 0 feet.
Percent of increase is given by the formula (amount of change)/(original amount) * 100. Your work is accurate.
Answer:
x = - 8
Step-by-step explanation:
vertical line : x = -8