Answer:
See explanation
Step-by-step explanation:
x <= 3.9 means that x is less than or equal to 3.9
So lets look at each value:
x = 4.1 4.1 is not less than or equal to 3.9, so x = 4.1 is not a part of the solution set
x = -3.9 -3.9 is less than or equal to 3.9, so x = -3.9 is a part of the solution set
x = 3.9 3.9 is equal to 3.9, so x = 3.9 is a part of the solution set
x = 4 4 is not less than or equal to 3.9, so x= 4 is not a part of the solution set
x = 4.3 4.3 is not less than or equal to 3.9, so x= 4.3 is not a part of the solution set
x = 3.8 3.8 is less than 3.9, so x = 3.8 is a part of the solution set
