Final answer:
A variable expression consists of numbers, variables, and operations.
Step-by-step explanation:
A variable expression consists of numbers, variables, and operations. This statement is True. In mathematics, a variable is a symbol used to represent an unknown quantity or value. In a variable expression, the variables can take on different values, and the expression can be evaluated or simplified using mathematical operations. Variable expressions are indeed composed of numbers, variables, which are symbols that can represent different values, and operations such as addition, subtraction, multiplication, and division. For example, in the context of the equation of a line, such as y = mx + b, the variables x and y stand for any real number, which make the equation applicable to multiple scenarios depending on the values of x. The constants b and m here determine the intercept and the slope of the line, respectively. Thus, this equation represents a variable expression as it involves both numbers (m and b), variables (x and y), and the operations of multiplication and addition.