I do not know that why I asked you
It is a variable
A variable is a (letter) symbol that represents one or more numbers
k= 1000, C = 100.
A symbol that represents one or more numbers is typically referred to as a variable in mathematics. In algebra, these variables are often represented by letters such as x, y, or z. These letters are placeholders for unknown or varying values in equations or formulas.
It is a variable
A variable.
a letter or symbol that stands for one or more numbers is a
Probably a set but possibly a variable?
variable
a variable
VARIABLE
It is a variable.