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Simplify: (2³×3²) ÷6

?% of 320 = 40% of 40 × 5

125% of 80 – 6 × 4 = ? × 13 – 54

(60 × 8 ÷ 10) × 5 = ?

Find the HCF of 15x² + 8x – 12, 3x² + x – 2, 3x² - 2x, 9x² - 12x + 4

140% of 1270 + 60% of 2085 = 1881 + ‘?’% of 287

[∛(3375/19683  )- ∛(125/1728  )  ] ÷ ∛(64/729)  = ? - 3/8 

1885 ÷ 64.98 + 7.29 + ? = 69.09

(〖(0.4)〗^(1/3)  × 〖(1/64)〗^(1/4)  × 〖16〗^(1/6)  × 〖(0.256)〗^(2/3))/(〖(0.16)〗^(2/3)  × 4^(-1/2)  ×〖1024〗^(-1/4) ) = ?

(1/2) – (3/5) + 3(1/3) = ? + (5/6)