To round 46.74 kilometers to the nearest tenth, we follow these steps:
- Identify the tenths place, which is the first digit after the decimal point. In this case, that digit is 7.
- Look one place to the right (the hundredths place). The digit in the hundredths place is 4.
- Since 4 is less than 5, we round down.
Therefore, 46.74 rounded to the nearest tenth is 46.7.
So, the correct response is: 46.7