Unit 4 Expressions review

The price of nails is $1.29/lb, the price of washers is $0.79/lb, and the price of bolts is $2.39/lb. Part A: Write an expression to represent the total price of n pounds of nails, w pounds of washers, and b pounds of bolts.

• 1.29n + 0.79w + 1.39b
• 0.79n + 1.29w + 2.39b
• 2.39n + 0.79w + 1.29b
• 1.29n + 0.79w + 2.39b

Tags

CCSS.HSA-SSE.A.1A

The price of nails is $1.29/lb, the price of washers is $0.79/lb, and the price of bolts is $2.39/lb. Part B: What is the total cost of buying 2 pounds of nails, 4 pounds of washers, and 3 pounds of bolts?

• $12.91
• $15.75
• $10.50

Tags

CCSS.6.NS.B.3

During a walkathon, Team A walks a total of 6x + 12 miles and Team B walks a total of 4x – 7 miles. What is the difference in miles walked between the two teams?

• 2x – 5

• 2x + 5

• 2x – 19

• 2x + 19

Tags

CCSS.HSA.APR.A.1

Select all the expressions that are equivalent to -3/4(32 + 24e – 4f).

• 24 + 18e – 3f

• -18e + 3f – 24

• -24 – 18e + 3f

• 8 – 6e – f

• 3(-8 – 6e + f)

Tags

CCSS.6.EE.A.3

Simplify the expression 2(x – 6) + 2(8).

• 2x + 4

• 2x + 2

• x + 4

• x + 2

Tags

CCSS.6.EE.A.3

The manager of a store marks up all items by 10%. If x is the original price, select all the expressions that represent the new price with the markup.

• 0.9x

• x

• 1.1x

• x + 0.1x

• x – 0.1x

Tags

CCSS.6.EE.B.6

There are 10x – 8 customers in a store on Monday and 6x + 16 customers on Tuesday. What is the total number of customers for the two days?

• 4x + 24

• 4x + 8

• 16x + 24

• 16x + 8

Tags

CCSS.HSA.APR.A.1

The height of the water in a fish pond is 42.5 inches. Water is being drained from the pond at a rate of 3.75 inches per minute. What is the height of the water after 3 minutes?

• 28.50 inches
• 35.75 inches
• 31.25 inches

Tags

CCSS.7.NS.A.3

Consider the expression below (30b - 6c). Part A Factor the expression using the GCF.

• 6(5b - c)
• 6(5b + c)
• 2(15b - 3c)
• 3(10b - 2c)

Tags

CCSS.7.EE.A.1

Consider the expression below (30b - 6c). What is the value of the expression when (b = -4) and (c = 1)?

• -90
• -72
• -126
• -150

Tags

CCSS.6.EE.A.2C