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Algebra 13 Online
OpenStudy (anonymous):

Evaluate 1/2 n − 5 when n = 18 A. -4 B. 4 C. 14 D. 31

OpenStudy (ivettef365):

just substitute the n for 18 so you have 1/2 (18) - 5 =

OpenStudy (ivettef365):

what is half of 18 = ??

OpenStudy (ivettef365):

then subtract by 5

OpenStudy (anonymous):

so i type in 1/2 times 18-5

OpenStudy (ivettef365):

1/2 times 18 then subtract by 5

OpenStudy (ivettef365):

what is 1/2 of 18 ???

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