If a tuple can mix types where a string can't, why does it still support the very same indexing, slicing, and `len` you already learned on strings?
Short drills on what this video just taught. Write the code, run the checks, and reveal the answer only if you are stuck.
Create a tuple whose only element is the integer 7, and assign it to single.
A one-element tuple needs a required trailing comma — otherwise Python reads the parentheses as ordinary grouping and you just get the number back.