Quizizz Common 3A practice 1

Which expression is equivalent to -0.25(84 – 32n) – n?

• 21 – 9𝑛

• −21 – 9𝑛

• −21 + 8.25𝑛

• −21 + 7n

The original price, 𝑝, of a single scoop of ice cream has increased by 7%.

The new price can be represented as 1.07𝑝.

Which expression is also equivalent to the new price?

• 1 + 7𝑝

• 𝑝 + 0.7𝑝

• 1 + 0.07𝑝

• 𝑝 + 0.07p

Linda and James each wrote an expression using the variables a, b, and c.

Linda’s expression: 2𝑎 + 10𝑏 − 𝑐

James’s expression: −3𝑎 + 5𝑏 + 𝑐

What is the sum of the two expressions?

• 𝑎 – 15𝑏

• −𝑎 + 15𝑏

• 5𝑎 + 5𝑏 – 2𝑐

• 5𝑎 + 15𝑏 + 2c

Which expression is equivalent to −1/2(6𝑥 + 9) − (𝑥 −3/2)?

• 5𝑥 – 3

• −2𝑥 + 7.5

• −4𝑥 – 3

• −4𝑥 – 6

At a clothing store, jackets are on sale for 30% off. Sales tax is 5%.

Which expression

will calculate the total cost of a jacket with an original price of x?

• x(0.35)

• x(0.75)

• x(0.70)(1.05)

• x(0.70)(0.05)

Sheila simplified an expression using the following steps.

Step 1: 5𝑥 + 4(3 + 2𝑥)

Step 2: 5𝑥 + 12 + 8𝑥

Step 3: 5𝑥 + 8𝑥 + 12

Step 4: 13𝑥 + 12

Which property justifies Step 3?

• Identity Property

• Associative Property

• Distributive Property

• Commutative Property