Question

an algebraic _________ is a symbolic expression that shows the operations to be performed on terms.
a _________ is a symbol, usually a letter, that represents an unknown number in an expression or an equation.
the numerical factor of a term that contains a variable is called a _________.

Explanation:

1. An algebraic expression is a symbolic combination showing operations on terms.
2. A variable is a letter representing an unknown number in expressions/equations.
3. A coefficient is the numerical factor of a term with a variable.

Answer:

expression
variable
coefficient