Which hormone is used to induce rooting in

(512) ^(2/3) × √64 ÷ (512) ^(1/3) = (64) ^(?/2) ÷ (2)⁶ 

729^2/3 = ?

What is 12% of 4% of 7% of 2 x 10⁶ ?

(392 + 427 + 226 – 325) ÷ (441 + 128 – 425) = ? 

What will come in the place of question mark (?) in the given expression?

{15² − 9²} ÷ 3 + √400 = ?

What value should come in the place of (?) in the following questions.

336 ÷ 6 ÷ √16 * ? = 1400 ÷ 4

28(4/5) + 52(1/2) × 8(2/7) - 11(1/5) = ? + 6(1/5)

756 + 432 – 361 + ? = 990

20% of 240 + 18% of 200 = ?