Answer: The sentence "Te sécate el pelo" is not grammatically correct as the reflexive pronoun "te" should come before the verb "sécate" in order to be grammatically correct.
The sentence "Te cepílla los dientes" is not grammatically correct. The correct sentence should be "Cepíllate los dientes" as the reflexive pronoun "te" should come after the verb "cepillar" to be grammatically correct.
Step-by-step explanation: