380mmHg
570mmHg
190mmHg
480mmHg
Correct answer is B
(p - 760)/(0 - 760) = (h - 0)/(80 - 0) ∴ (p - 760)/-760 = (20 - 0)/80 80(p-760) = -760(20-0) ∴80p - 60800 = -15200 80p = 60800 - 15200 80p = 45600 ∴ p = 45600/80 p = 570mmHg
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