What should come in place of the question mark (?) in the following mathematical statement?
$${{?^6÷16=108}}$$

Direction: What approximate value will come in place of the question mark (?) in the following question? (You are not expected to calculate the exact value)

468.02 + 79.91 ÷ 5.01 = ?²

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

(0.85 % of 405 ) + (2.25 % of 550 )=?

Direction: What approximate value will come in place of the question mark (?) in the following question? (You are not expected to calculate the exact value)

{(540.34)/(17.99)} ÷ {(29.99)/(449.89)} × {1/(89.78)} = ?

? – 2³ =(7² – 12 ) + ( 10² -17)

If p = 99, then value of p(p² + 3p + 3) is

If $${8+2\sqrt{3} \over 3\sqrt{3}+5}=a\sqrt{3}-b$$, then the value of a+b is equal to: