Question

The expression - 350 + 19m represents a submarine that began at a depth of 350 feet below sea

level and ascended at a rate of 19 feet per minute. What was the depth of the submarine after 7
minutes?
Select the correct answer below and, if necessary, fill in the answer box to complete your choice.
A. The submarine was feet below sea level after 7 minutes.
OB. The submarine will have reached sea level after 7 minutes.

Answer 1

A. The submarine was 217 feet below sea level after 7 minutes

Explanation:

-350+19(7)

-350+133

-217

Since the answer is negative, the submarine was bellow sea level.