Since the deepest point of Death Valley is below sea level, its altitude is negative. So, the difference between the altitudes is

Subtracting a negative means to add, so we have

The domain is all real numbers.
Hope this helps.
in a test marked out of 40,the marks of 10 students were 32,20,7,30,25,22,18,35,10,11.calculate the mean mark for the test
Kruka [31]
Answer:
23.5
Step-by-step explanation:
25 + 22 = 47, 47/2 = 23.5
Answer:
$37.5
Step-by-step explanation:
25% = 1/4
50/4 = 12.5
50 - 12.5 = 37.5
hope this helped (: