Burning of coal is an example of

{(440.89 ÷ 20.74) ÷ 2.88} × 48.65 = ? ³

657.94 + 335.21 - 211.09 - 82.30 = ?

? = 41.92% of 49.96% of (45.07 ^1.97 – 4.98 ^2.03 )

49.96% of 120.21 + √(15) ÷ 1.87 × 4.41 = ? 

35.05% of 14.87 × (13.02 – ?) + 30.19 = 188.7

32.05²- 22.03 x 24.199 - 15.18 x 11.04 = ?

Solve the following expression and calculate the approximate value.

118.95 – 24.10 + (91.90 ÷ 22.89 × 12.14) = ?

1254.04 – 440.18 + 399.98 ÷ 10.06 = ?

49.99% of 539.99 + 263.98% of 49.99 = ?% of 1608.01