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Ferns, horsetails (often treated as ferns), and lycophytes (clubmosses, spikemosses, and quillworts) are all pteridophytes. However, they do not form a monophyletic group because ferns (and horsetails) are more closely related to seed plants than to lycophytes.
(165 × 12) ÷ 45 + 110 = ? × 2
140% of 1270 + 60% of 2085 = 1881 + ‘?’% of 287
52% of 400 + √(?) = 60% of 600 - 25% of 400
(18 × 9 ÷ 6) × 3 = ?
85% of 620 + ? % of 1082 = 4855
20% of (√9216 + ?) = 24
216% of 350 + 273 = ?2 × 21
What is the place value of 6 in 367892141?
