Drinking water with high nitrate can cause a potentially fatal disorder called methemoglobinemia. Methemoglobinemia is a condition in which more than one percent of the hemoglobin in red blood cells take the form of methemoglobin.
(6 × √361) × 2.5 = ? + 125
√289 + √49 + 121 =?
2/9 of 5/8 of 3/25 of ? = 40
(√ 1444 ÷ 5) × 3.25 = ?
7/3 of 4/5 of 15/56 of ? = 83
2(1/3) + 2(5/6) – 1(1/2) = ? – 6(1/6)
I. 8x² - 74x + 165 = 0
II. 15y² - 38y + 24 = 0
2945 – 1508 + 3454 = ? + 2255
((67)32 × (67)-18/ ? = (67)⁸
√ (12+√ (12+√ (12+ ⋯ ∞ ))
