baile
Step-by-step:
since its more than one and its a command you change -ar to just -e
Answer:
Baile
Explanation:
The answer would be baile in the usted form of a command. This is formed by taking the original word (bailar), and changing it to the yo form of the verb. This is bailo. Now, add the opposite ending from its original -ar form, which is -er, making it baile.
