Simplify the following expression.

 25-(4÷2)+11.5+9.5

24% of 680 + 16 % of 525 – 22% of 450 =?

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

115% of 4880 – 85% of 1640 = ?

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

Find the conjugate of (1 + i) ³ 

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

  is equal to: