Question

Does anyone know the answer?

Answer 1

number 4

3,4,5

Answer 2

Explanation:

3x - 4 < 12

3x < 16

x < 16/3

We are looking for a set with elements that are less than 16/3 or 5.333...

Only Set 4's elements are all less than 16/3. Hence it is the answer.