Solve: 2x + 4 < 18, where x is a natural number.

Solve: 5 − 7x ≥ 33, where x is an integer.

If one worker earns Rs.200 per day, how many workers can be employed with in a monthly budget of Rs.3 Lakh?

Solve the inequation: −2 ≤ z + 3 ≤ 5, where z is an integer. Also, represent the solution, graphically.

Solve graphically: 6y − 5 ≤ 2y + 7, where y is an integer.