Answer:
71.12 cm
Step-by-step explanation:
There are 2.54 cm per inch, so your conversion is ...
(28 in)(2.54 cm/in) = 28×2.54 cm = 71.12 cm . . . (exactly)
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As with all units conversions, you multiply by a fraction whose value is 1. That is, the conversion factor has the same value in the numerator as in the denominator. You choose those values so the numerator has the units you want, and the denominator has the units you want to convert from. Here, that conversion factor is ...
[tex]\dfrac{2.54\,\text{cm}}{1\,\text{in}}[/tex]
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