📚 Part 1: Evaluating Expressions and Multiple Choice

1. Evaluate the expression 3x + 7 when x = 4.

2. What is the value of 2y - 5 when y = 8?

11

13

16

21

3. Which expression has a value of 15 when n = 3?

4n + 2

5n

6n - 3

2n + 8

4. Evaluate 12 - 3a when a = 2. Show your work.

✏️ Part 2: Writing Expressions and Identifying Parts

5. Write an expression for "5 more than twice a number m".

Expression: ___________________

6. Sarah has $12 and spends $3 on lunch each day. Write an expression for the amount of money she has left after d days.

Expression: ___________________

7. In the expression 4x + 9, identify the following parts:

Variable: ___________

Coefficient: ___________

Constant term: ___________

Number of terms: ___________

8. A rectangle has a length of (x + 5) feet and a width of 3 feet. Write an expression for its perimeter.

9. Solve for x: x + 8 = 15

10. Solve for y: 3y = 21

11. Which value of n makes the equation n - 7 = 12 true?

n = 5

n = 19

n = -5

n = 84

12. Tom bought some pencils for $4 each and spent $20 total. Write and solve an equation to find how many pencils he bought.

Equation: ___________________

Solution: ___________________