Which of the following organisms breathe through their

8(3/4) + 5(1/6) – 4(3/4) = ?

Simplify the following expressions and choose the correct option.

18 * 15 - {3/5 of 250 + 7²}

(6 × √361) × 2.5 = ? + 125

8 × (25 % of 720) – 50 % of 135 % of 840 = ?

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

(576 ÷ 12) + (3³ × 4) = ?

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

{250% of 46 + 16 ÷ (1/5)} ÷ 15 = ? ÷ 3 – 29

19 × ? = 361 ÷ 19

721 +21 x 9 - 118 = ? + 82

?² + 114 - 48 ÷ 2 × 5 = 163