Question

Matt is awaiting his baby's first words. matt can expect his baby to say his first word when the baby is _____ months old.

Answer 1

he can expect the first word when the baby is around 12 months old
In order to say a word, an infant need to gain enough cognitive ability to be able to connect a certain word with the meaning that associated with the word.
In most cases,the first word would be associated with something that they see most often (mama or papa)