Step-by-step explanation:
<em><u>hope </u></em><em><u>this </u></em><em><u>answer </u></em><em><u>helps </u></em><em><u>you </u></em><em><u>dear.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>if </u></em><em><u>u </u></em><em><u>have </u></em><em><u>any </u></em><em><u>doubt</u></em><em><u> </u></em><em><u>feel </u></em><em><u>free </u></em><em><u>to </u></em><em><u>ask!</u></em>
Answer:
any number grater than or equal to 21
Step-by-step explanation:
The question is somewhat confusing but assuming you mean where the submarine is after moving up 7 meters then down 38 meters the submarine would now be located 56 meters below sea level