Final answer:
The conversion of 3900 meters to miles results in 2.42 miles when rounded to two decimal places, corresponding to answer choice (a) 2.42 mi.
Step-by-step explanation:
To convert 3900 meters to miles, we use the conversion factor that 1 mile is approximately equal to 1609.34 meters. The calculation is as follows:
3900 m ÷ 1609.34 m/mi = 2.424 mi
When rounding to two decimal places, we get 2.42 miles, which is answer choice (a) 2.42 mi.