This book has around 48 lessons
Lessons
The nouns in the sentence are Stella, lessons, and age.
No. It should be, "He could not attend any of his lessons."
The simple subject in the sentence "Alice helped him with his piano lessons" is "Alice." The simple subject refers to the main noun or pronoun that the sentence is about, which in this case is the person performing the action of helping.
Simple Subject: museum Simple Predicate: lessons
He gave us lessons on how to paddle a canoe.
There are 2 pronouns in this sentence, "he" and "her".
guitar lesson
James is eager to get start guitar lessons.
There is not one, my young apprentice. I see you have much to learn from my lessons
I formerly participated in piano lessons. What was your occupation, formerly?
Yes, that's a correct sentence.