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IceJOKER [234]
2 years ago
11

a small submarine is at an elevation of -30 feet compared to sea level. what is its elevation after it ascends 9 feet? PLEASE HE

LP!!!!!!!!!!!!!!!!!!!!!! WILL GIVE BRAINLIEST AND 5 STAR TO WHOM WHO ANSWERS IT CORRECTLY!!!!!!!!!!!!!!!!!!!!!!!!!!!! NO GUESSES!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Mathematics
2 answers:
harkovskaia [24]2 years ago
7 0

Answer:

_______

-21 feet

_______

Dominik [7]2 years ago
6 0

Answer:

-21 feet

Step-by-step explanation:

-30 + 9 = -21

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see the explanation

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we know that

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