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14 June, 13:09

The number of students at parkville high school is 21 less than 2 times the number of students at midtown middel school which expression could be used to represent the total number of students at parkville high school is s represents the number os students at midtown middle school

a 2s + 21

b 21 - 2s

c 2s - 21

d 12 + 2s

+4
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  1. 14 June, 14:11
    0
    c.

    The number of students is represented with S, to show 2 times that number it is shown as 2S, a less than is word problem jargon for minus. So it is 2S-21.
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