Rate and Unit Rate

Mrs. Edgar bought an eight pack of bottled water for $4.00.  What was the unit price for the water?

• $32.00

• $0.50

• $3.20

• $5.00

The table shows the cost of long distance calls based on the number of minutes used. Is there a constant rate of change, and if so what is it?

• Yes, 10 calls per minute

• Yes, $.10 per minute

• Yes, $.40 per minute

• Not a constant rate

• a
• b
• c
• d

• a
• b
• c
• d

• a
• b
• c
• d

How many pencils are there?

• 20 pencils

• 24 pencils

• 96 pencils

• 48 pencils

• a
• b
• c
• d

• a
• b
• c
• d

• a
• b
• c
• d

• 5:12
• 7:12
• 5:7
• 7:5