Final answer:
The correct conversion factor to convert kilometers to miles is 0.62 miles per kilometer. Multiplying 55.6 km by this factor gives approximately 34.5 miles.
Step-by-step explanation:
The conversion factor used to convert 55.6 km to miles is not listed among the provided options in the question (a) 34.6 miles, (b) 20.7 miles, (c) 46.6 miles, or (d) 34.6 miles because these appear to be conversion results, not factors. The correct conversion factor, based on provided reference information, is that 1 mile is equal to 1.61 kilometers. To convert kilometers to miles, you would use the conversion factor of 0.62 miles per kilometer.
Therefore, to convert 55.6 km to miles, you would multiply 55.6 km by the conversion factor (0.62 miles/1 km) to get the number of miles:
55.6 km * 0.62 miles/1 km ≈ 34.5 miles (not 34.6 miles, which is likely a typo).