29.4 rounded to the nearest tenth is 29.4. Since the digit in the hundredths place is 0, we don't need to round up or down, and the number remains the same.

Would you like further details on rounding or have any questions?

Here are five related questions to expand on this concept:

1. What is 29.46 rounded to the nearest tenth?
2. How would you round 13.9 to the nearest whole number?
3. What is 52.25 rounded to the nearest hundredth?
4. How do you round numbers with more decimal places, like 7.245?
5. What is the rule for rounding if the digit to the right is exactly 5?

Tip: When rounding to the nearest tenth, check only the hundredths place to decide if you need to round up or down.