The length of the each side of an equilateral triangle

(286 ÷ 11 + 14) × 5 = 40 + 25% of ?

Find the simplified value of the following expression:

6² + 12² × 5 - {27² + 16² - 42²}

33 + (6.25) % of 1600 = ? + 2 X 55

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

25% of 1280 + (41 × 4) = ?² 

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

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

Determine the simplified value of the given mathematical expression.

(15 × 16) + 24²= ? × 16

4387897 – 3286871 – 51926 = ?

What value should come in the place of (?) in the following questions?

?² = 240 * √25 + 38 * 5 - 94