Which number below best represents an elevation of eight hundred fifty-one and two-fifths feet below sea level?
A.
851
B.
851
C.
-8510
D. -851
stion 6.

Show algebraically that f and g are inverse functions f(x)=x^2/-6; g(x)=square root of 2x+12

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.

What expression is equivalent to (84+16)