If the number is no less than 6, that means that it is not any smaller than 6.
That narrows the answer down to x > 6 and x >= 6. The difference between these two choices is that x>6 means that x cannot equal 6, while the last choice is greater than OR equal to 6.
Since we are looking for when the minimum value for x is 6, x >= 6 is the answer.
