Final answer:
The cost per slice of the apple pie is $0.81, and the total cost of the pie is $9.72.
Step-by-step explanation:
To find the cost per slice of the apple pie, we need to calculate the total cost of making the pie and divide it by the number of slices.
The ingredients cost $8.50 and the cost of electricity is $1.25. Therefore, the total cost of making the pie is $8.50 + $1.25 = $9.75.
Since the pie is cut into 12 slices, the cost per slice is $9.75 / 12 = $0.81 per slice.
To find the total cost of the pie, we multiply the cost per slice by the number of slices. Therefore, the total cost of the pie is $0.81 x 12 = $9.72.