Units, Scientific Notation, and Significant Figures

It is known that 1m = 1.095 yards, and there are 1000 km in 1 m. Therefore the dimensional analysis is set up with this information as follows:

Please notice that the units cancel themselves out. This is very important.

Known: There are 12 inches in a foot, and 2.54 cm = 1 inch.

The woman's height is inches is 60" + 6.0" = 66.0"