Answer
$ 7.65 \times 10^2 \ mm\ Hg$
Work Step by Step
Using our knowledge of units, we find:
$ 1.02 \times 750 \ mm\ Hg$
To convert to scientific notation, move the decimal to the right or left, counting the number of times that you do so, until you get a number that is at least 1 but that is less than 10. If you moved the decimal right, the number of times the decimal is moved will be negative, while moving left yields a positive number. Then, raise 10 to that number. This gives:
$ 7.65 \times 10^2 \ mm\ Hg$
