Answer:Juan has already run a total of 2.3 + 5.6 = 7.9 miles on Monday and Wednesday.
To reach his goal of running 12 miles by Saturday, he still needs to run an additional 12 - 7.9 = 4.1 miles.
Therefore, Juan needs to run 4.1 more miles to meet his goal of running 12 miles by Saturday.
Explanation: