round to the nearest tenth.\n6.78

Explanation:

Step1: Identify the tenths place

The tenths digit in 6.78 is 7, and the hundredths digit is 8.

Step2: Round up if hundredths ≥5

Since 8 ≥ 5, add 1 to the tenths digit: $7 + 1 = 8$

Step3: Drop the hundredths digit

Keep the units digit 6 and the new tenths digit 8, removing the hundredths digit.

Answer:

6.8