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Start learning 50% faster. Sign in nowLimestone is primarily composed of calcite (CaCO ₃ ). Quartz dominates sandstone, and gypsum is a sulfate mineral.
(82 + 62 ) × 1.25 + 20% of 145 = ? – 40% of 65
Simplify: 6(x³ − 2x² + 3x) − (x³ + 2x − 3).
20% of 150 + 30 X 4 = ? X 5
? = 20% of 1200 + 256
4.004 + 5.7(2.5 – 0.5) =?
(21 × 16 – 8) ÷ 41 = ?
37% of 810 – 32% of 460.5 = ?
? = 2640 ÷ {(35% of 1240) – 170}
? = 6.25% of 240 + 25 2 + 17 2 – 16 × 17
