In terms of ecology, an organism that can tolerate a

20.99 × √4.09 × 30.09 = ? × √195.99 × 15.09

(2520.33 ÷ 41.67) × (√168.88 + √80.78) - 10% of 1499.85 = ?

15.23² + 19.98% of 649.99 = ? × 4.99

56.02% of 1499.98 + 64.04% of 2501.01 = ? + 25.05 × 49.98 + 6.06³

? = 21.91% of (36.2 × (144.01 + 5.95)) + 16.71

(16.16 ×  31.98) + 14.15% of 249.99 = ? + 99.34

1449.98 ÷ 50.48 × 10.12 = ? × 2.16

(5/9 of 2699.81) + (49.88% of 144.18) - (2/7 of 489.77) = ?

(359.92÷24.02)+(230.04÷5)=?% of 210.0-86.1

18.002 × 109.995 + 1499.996% of 450.08 + 12.005 % of 2999.997 = ? × 30.008 × 25.009