Unit 4 Test Review

Front

Evaluate the expression: Let g = 3, h = 9. What is 4h + 2g + 4?

Back

46

Front

Eleni bought 2 pounds of grapes at a cost of $3.49 per pound. She paid with a $10 bill. How much change did she get back?

Back

$3.02

Front

Write an inequality for the situation: You are driving, and the maximum speed limit is 55.

Back

s ≤ 55

Front

Simplify the expression: 2x + 1 + 7x.

Back

9x + 1

Front

Write the following expression in factored form: 8x + 16.

Back

8(x + 2)

Front

What is the definition of an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

Front

What is the difference between an equation and an inequality?

Back

An equation states that two expressions are equal, while an inequality shows that one expression is greater than or less than another.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to combine like terms and reduce it to its simplest form.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac.

Front

What is a variable in mathematics?

Back

A variable is a symbol (usually a letter) that represents an unknown value.