Working with units

Choose the item that is the best buy:

• $145 for 15 chairs

• $88 for 11 chairs

Anna buys 7 bottles of apple juice at the corner store for a total cost of $3.50. If each bottle costs the same amount, how much is each bottle of juice?

(Write the answer with appropriate symbols)

Penelope is going to the carnival to ride the rides. It costs $20 to get into the carnival and ride tickets are $0.50 each. Write an equation that represents this scenario if she spends $35 in all.

• .50x + 20 = 35
• .50x = 35
• .50 + 20x = 35 
• .50x - 20 = 35

Use the Distributive Property to solve the equation.
4( x + 2) = 16

• -2
• 0
• 1
• 2

If you have $10 and spend $3, how much do you have left?

The table shows the relationship between the number of tables and the number of chairs in each of three meeting rooms of an office building.

Which equation describes the relationship between the number of tables and the number of chairs in each meeting room?

• c = 3t

• c = 8t

• c = 21t

• c = 24t

Samantha is buying 18 candy bars for $9.50. How much does it cost per candy bar?

Marsha bought a birthday card for $2.86 and a pen for $1.57. She paid with a $20 bill. How much change should Marsha have received?

• $15.57

• $24.43

• $17.77

• $16.57

Which is the better buy?

• A 4 pack of t-shirts for $2.24
• A 6-pack of t-shirts for $3.12
• An 8 pack of t-shirts for $4.24

If     $\frac{1}{3}x+\frac{1}{6}x+\frac{1}{9}x\ =\ 33$  , what is the value of x?

• 18

• 27

• 54

• 72