The interval notation of x > 1 and x < 4 is:
]1, 4].
[1, 4[.
]1, 4[.
[1, 4].
The solution of the inequality 3 - 5x ≥ 18 is:
x ≥ -3.
x ≥ 3.
x ≤ 3.
x ≤ −3.