Question 1
What does a variable represent in algebra?
Question 2
Which of the following is an example of an algebraic expression?
Question 3
What is the difference between an expression and an equation?
Question 4
Translate the phrase 'the sum of a number and 7' into an algebraic expression.
Question 5
If $x = 3$, what is the value of the expression $2x + 4$?