Unit 2 Practice

Brett has a $30 online gift card. He plans to buy as many books as he can. The cost of each book is $4. There is also a single shipping charge of $2. Write an inequality to show how to find the maximum number of books can he afford without spending more than his gift card.

• $4b + $2 ≥$30

• $2b + $4≤$30

• $4b + $2 ≤$30

• $4b − $2 >$30

(4x - 8) - (2x - 3)

Mathematical Equivalence

ON

Solve the following inequality:
​3x + 2 ≥ -7

• x ≥ 3

• x ≥ -3

• x < 3

• x < -3

Simplify the following expression by combining like terms.  Select the most simplified expression:
2w + 5w - 6 + 4w​

• 5w

• 11w - 6

• 7w - 2

• 7w - 6 +4w

Expand to write an equivalent expression:

−1/4 (−8x+12y)

Mathematical Equivalence

ON

Factor to write an equivalent expression:

36a−16 

Mathematical Equivalence

ON

Simplify the following expression by combining like terms:

48 + 22x - 14x + 24

Mathematical Equivalence

ON

When solving the given equation, what is the first step?

Given: 2x + 4 = -2

• add 4 to both sides

• multiply by 2 on both sides

• add 2 on both sides

• subtract 4 on both sides

Mrs. Dixon baked twice as many cupcakes as Ms. Waters plus more 20 cookies. She baked 44 items total. The equation 2x + 20 = 44 represents this situation. What does the variable x represent?

• How many cookies Mrs. Dixon baked

• How many cookies Ms. Waters made

• How many cookies were in total

Solve the following equation for x:

2x + 3 = -15

• x = -9

• x = 9

• x = -16

• x = -6