Question

In converting 85 centimeters to inches, what unit (omit the number) would you place in the numerator of your ratio? Use the plural form in your answer. Remember that there are 2.54 centimeters in 1 inch.

Answer 1

we know that
1 in--------------> is equal to 2.54 cm
X in--------------> 85 cm
X=[85 cm]*[1 in]/[2.54 cm]----> X=33.46 in

the units of the ratio (1/2.54) are [inches]/[centimeters]
therefore
the unit in the numerator of the ratio is [inches]

the answer is
inches