The simplified value of
$${{1\over 3}÷{1\over 3}×{1\over 3}\over{1\over 3}÷{1\over 3}of{1\over 3}}-{1\over 9}$$

Find the value of x:
2³ × 3⁴ × 1080 ÷ 15 = 6^x

Find the conjugate of (1 + i) ³ 

If 5x + 5 > 2 + 2x and 5x + 3 ≤ 4x + 5; then x can take which of the following values?

25.6% of 250 +√ ? = 119