Answer :
The expression that represents a linear expression is 4x+4.
What is Expression?
An expression is combination of variables, numbers and operators.
A linear expression is an algebraic statement where each term is either a constant or a variable raised to the first power.
In the given expressions the option A, B and C having variables with power more than one.
So those are not linear expression.
4x + 4 is a linear expression.
Because the variable x as power one.
Hence, the expression that represents a linear expression is 4x+4.
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