If submarine is at the surface (the initial position) and then dives 375 ft, the coordinate of submarine becomes -375 ft <span>relatively to the initial position. When the submarine dives another 175 ft down, the coordinate of submarine becomes -375-175=-550 ft relatively to the initial position.
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Answer: Correct choice is A.
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Your answer would be the second one. Because the question says 4 LESS than the QUOTIENT of 16 and 2, you would divide first and then subtract 4 because the question infers that you already divided. You would also divide first because if you follow PEDMAS ( parentheses, exponents, divide/multiply, add/ subtract) you would see that division comes before subtraction. I hope this helps!