Answer: 21.4
Step-by-step explanation: Step 1. I look in the hundredths place. If I see a 5 or more I round up, otherwise down, to the next multiple of one tenth.
Step 2. The number in the hundredths place is 5 so I know to round up.
Step 3. The next higher multiple of one tenth is 21.4. That is the answer.
