Final answer:
The unit rate of $240 for 14 ft2 is calculated by dividing the total cost by the total square feet, resulting in approximately $17.14/ft2 after rounding to the nearest hundredth.
Step-by-step explanation:
To find the unit rate, we divide the total cost by the total number of square feet. In this case, we have $240 for 14 square feet (ft2). Therefore, the unit rate is calculated as follows:
$240 ÷ 14 ft2 = $17.142857...
When we round to the nearest hundredth, it becomes approximately $17.14 per square foot (ft2). So, the unit rate is $17.14/ft2.