Which unit rate problem yields a result of $3.00 per item?

• A. 9 items cost $27, price per item = $2.00
• B. 9 items cost $28, price per item = $3.11
• C. 9 items cost $27, price per item = $3.00
• D. 9 items cost $29, price per item = $3.22

Answer: (C)

Unit rate means the cost for one item. To find it, divide the total cost by how many items you get. For 9 items costing $27, the unit rate is $27 ÷ 9 = $3.00 per item. That matches exactly $3 per item.

The other totals don’t give $3 per item: $28 ÷ 9 is about $3.11 per item, and $29 ÷ 9 is about $3.22 per item. So only the scenario with $27 for 9 items yields $3.00 per item.