Respuesta :

Answer:

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Step-by-step explanation:

Answer:

z ≤ 7

Step-by-step explanation:

30 ≥ 6(2/3z + 1/3)

distribute the 6

30 ≥ 4z + 2

subtract 2 from both sides

28 ≥ 4z

divide both sides by 4

7 ≥ z

z ≤ 7