what did I do wrong unknown?

Hey,

You are close, it is definitely a good effort.

WHAT YOU DID Print is a function. You are trying to save a function that prints to the console. It doesn't actually return anything.

age =50
days = age * 52 * 7
summary = print("I am str{} days old!".format(days))

WHAT I DID Now, I did the age and multiplication different, just for the sake of doing it different. Yours works too but I wanted to show another way to do it for fun lol

What you need is a string, but {} indicates it's a formatted string. So str.format() allows me to format a string. The first argument is the string and the second argument is what goes into the {} within the string.

age = 30
days = 30 * (52 * 7)
summary = str.format("I am {} days old!", days)

Does this help clear it up for you? Let me know if not and I can explain it further.

Thanks!