Which expression is equivalent to 81^1/3

 is that Emilia inequality is correct because the number of hours is less than or equal too but then Emilia number line is incorrect . The endpoint should not be filled in and the number line should be shaded to the left of the endpoint it is because of how the sign is less than or equal to 6 but in the number line it says that it may be six and greater than due to how the arrow is going to the right but it is supposed to go to the left because of how it six or less than six

Step-by-step explanation: