Find the simplified of the following expression:

29% of 400 + 66% of 1100 - 50% of 1200 = ? 

(47.5 ÷ 9.5) × (78.5 ÷ 15.7) + 475 = ? + 15% of 150

What will come in the place of question mark (?) in the given expression?

(17/27) of 162 + ?² = 632 - (73 - 12) X 5

If x + y + 3 = 0, then find the value of x³ + y³ – 9xy + 9.

√324 + √576 = ?/ √9

1/6+ 999*53/54  ×9  = ?

22 + 60 × 3 ÷ 12 = ?

? = 60% of 2500 + 85% of 2000 – 5³

654.056 + 28.9015 × 44.851 – 43.129 = ?

4261 + 8234 + 2913 + 8217 + 6283 + 4172 =?