If p = 8.15, q = 9.06 and r = −17.21, then the value of p³+q³+r³-3pqr

$$ (17)^{2} + 6 × (13)^{2}-212×6$$

158.25 x 4.6 + 21% of 847+?= 950.935045

$$ 11^{2}-4096^{1\over 4}+100^{1\over2}=?$$

115% of 4880 – 85% of 1640 = ?

If the square root of 841 is 29, then square root of 0.00000841 is equal to:

The value of x for which the expressions 7x + 13 and 13x - 7 become equal is _____ .

Simplified form of $$ [(^5\sqrt{x^{-3\over 5}}\ )^{-5\over3}]^{-5}$$