Question

A small submarine started its dive at sea level and descended 30 feet per minute. Which integer represents the submarine’s depth after seven minutes?

210 feet

-23 feet

37 feet

-210 feet
GPT 3.5
The submarine descends 30 feet per minute, so after 7 minutes it will be at a depth of 7*30 = <<7*30=210>>210 feet.

Therefore, the integer that represents the submarine's depth after seven minutes is 210 feet.

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