Final answer:
Jia uses 8 pieces of track, each 8 inches long, resulting in a total of 64 inches of track for her model train.
Step-by-step explanation:
The student's question involves finding the total length of model train tracks used by Jia. To do so, we need to multiply the number of track pieces by the length of each piece. Jia uses 8 pieces of track, each measuring 8 inches long.
By calculating the product of the number of pieces and the length of each piece, we get:
- 8 pieces × 8 inches/piece = 64 inches
Therefore, Jia uses a total of 64 inches of track for her model train.