Final answer:
Dante's unit rate of slicing potatoes is calculated by dividing the total number of potatoes (102) by the total time in minutes (12), resulting in a unit rate of 8.5 potatoes per minute.
Step-by-step explanation:
The student is asking about Dante's unit rate of slicing potatoes. To calculate Dante's unit rate, we divide the total number of potatoes by the total number of minutes it took to slice them. Thus, the unit rate is 102 potatoes / 12 minutes, which equals 8.5 potatoes per minute. Therefore, the correct answer is A) Unit rate: 8.5 potatoes per minute.