In the context of algebra, "4d" would typically be considered a numerical expression rather than a variable. A variable is typically a letter or symbol that represents an unknown quantity that can vary, while a numerical expression is a combination of numbers and mathematical operations. In this case, "4d" represents the product of the number 4 and the variable "d," making it a numerical expression.
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A variable expression includes variables.
numerical coefficent
The numerical factor of a term is called the "coefficient."
answer: 5n
The numerical factor of a term is called the "coefficient."