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Anonymous
450 cm
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3.5 cm is 5 times as long as 7 mm, and 4 times longer than 7 mm.
50 times longer.
Since 1 cm = 10 mm 8cm = 80mm So, 80mm/5mm = 20 Therefore, 8cm is 20 times longer than 5 mm.
8 cm x 10 = 80 cm.
Negative 5 cm.