Illegal copying and distribution of software

2(3/4) of 2880 + 54% of 7520 - ? = 30²

Solve for the ?

(42% of 1500 + 170) ÷ 4 = ?² - 5² 

193. 69 + 200.09 – 512.96 + 312.09 =?

(0.1 × 0.2 × 0.3) + (0.3 × 0.4 × 0.5) =?

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

224 ÷ 8 + 480 ÷ 15 = ? ÷ 2 – 270 ÷ 18

1200% of 18 + √1600 + 6² = ?² + (90 of 0.4)

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

24.30% of 372.32 = ?

25.6% of 250 + √? = 119