The expression -120 + 13m represents a submarine that began at a depth of 120 feet below sea level and ascended at a rate of 13 feet per minute. What was the depth of the submarine after 6 minutes?

It would be at a depth of 42 meters below the surface

Step-by-step explanation:

13(6)=78  -120+78=-42

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify