Final answer:
Jenny still needs to walk 6/9 miles more to reach the market.
Step-by-step explanation:
Distance refers to the amount of space between two points or the extent of space between things. It is a measurement of how far apart objects or locations are from each other.
To find out how much more Jenny needs to walk to reach the market, we need to subtract the distance she has already walked (2/9 miles) from the total distance to the market (8/9 miles).
8/9 - 2/9 = 6/9.
Therefore, Jenny still needs to walk 6/9 miles more to reach the market.