QUICK ANSWER
"And you" is a form of "and you", a phrase which is often translated as "y tú". "I am very good" is a phrase which is often translated as "estoy muy bien". Learn more about the difference between "and you" and "I am very good" below.
and you(
ahnd
yu
)A phrase is a group of words commonly used together (e.g., once upon a time).
a. y tú (informal) (singular)
A word or phrase used to refer to the second person informal “tú” by their conjugation or implied context (e.g., How are you?).
A word or phrase that is singular (e.g., el gato).
I'm going to a show tonight, and you?Yo voy a un concierto, esta noche, ¿y tú?
b. y usted (formal) (singular)
A word or phrase used to refer to the second person formal “usted” by their conjugation or implied context (e.g., usted).
A word or phrase that is singular (e.g., el gato).
They did something illegal, and you looked the other way.Ellos hicieron algo ilegal, y usted hizo la vista gorda.
I am very good(
ay
ahm
veh
-
ri
good
)A phrase is a group of words commonly used together (e.g., once upon a time).
a. estoy muy bien
How are you these days? - I am very good.¿Cómo estás estos días? - Estoy muy bien.
a. soy muy bueno
"I am very good at keeping secrets," said the man."Soy muy bueno para guardar secretos", dijo el hombre.
"I am very good at singing," said the actress."Soy muy buena para cantar", dijo la actriz.