Correcting errors in a computer program is known

800 + 900 X (3)^-2 - ? = 25 X 60 ÷ 2 

360 ÷ 9 + 15 % of 200 + ? * 10 = 45 * √25

135.37 – 50.24 + 629.09 – 199.50 = ? – 214.68 + 42.65

(0.125)³÷ (0.25)² x (0.5)² = (0.5)^?-3

55% of ? = 45 + 20 × 6

13 X √? + 256 ÷ 4 = 30% of 900 - 50

Simplify the following expression:

    (525 +175) ² - (525 – 175) ² / (525 × 175)

The value of 97 × 103 is _________.

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

(?³ - 888) ÷ 4 + 70 = 345 - 65