To round 88.651 to the nearest tenths, you look at the hundredths place, which is the second digit to the right of the decimal point. In this case, the number is 88.651:
- The tenths place is 6 (the first digit to the right of the decimal).
- The hundredths place is 5 (the second digit to the right of the decimal).
Since the hundredths digit (5) is 5 or greater, you round up the tenths digit (6) by 1.
Therefore, 88.651 rounded to the nearest tenths is 88.7.