Answer :

oscar236

Answer:

11.

Step-by-step explanation:

[(1/2)^-3 + (1/3)^-3 + (1/4)^-3] ÷ (3)^2

= ( 1 / 1/8 + 1 / 1/27 + 1 / 1/64) / 9

= ( 8 + 27 + 64) / 9

= 99/9

= 11.

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