Question

-220+18z represents a submarine that began at depth of 220 feet below sea level and ascended at a rate of 18 feet what was the depth at 5 min

Answer 1

Answer:

130 feet below sea level, or -130 feet

Step-by-step explanation:

Assuming you meant 18 ft per minute, it will have rose 90 feet in five minutes, 18*5=90

-220+90=-130