Topic 4 Test Review

Front

What is the total number of toy trucks sold if (7x + 12) were sold on Friday and (3x - 3) were sold on Saturday?

Back

10x + 9

Front

Evaluate 2(a - 5) + 2 when a = 15.

Back

22

Front

How many terms are in the expression 7y + 3 - 7k - 2?

Back

4

Front

Find the sum of the expressions (-3x + 5) and (5x + 2).

Back

2x + 7

Front

If it costs $12 to park and $10 per person for tickets, what expression represents the total cost for p people?

Back

12 + 10p

Front

What is the definition of a variable in algebra?

Back

A symbol used to represent an unknown value.

Front

What is an expression in mathematics?

Back

A combination of numbers, variables, and operators without an equality sign.

Front

What does it mean to evaluate an expression?

Back

To calculate the value of the expression by substituting variables with numbers.

Front

What is the difference between an equation and an expression?

Back

An equation has an equality sign, while an expression does not.

Front

What is the distributive property in algebra?

Back

a(b + c) = ab + ac, meaning you multiply a term by each term inside the parentheses.