โจ Best Answer โจ
ใใผใฟใฎๅ่จ=ๅนณๅๅคร20
ๅนณๅๅคใ0.3ๆธใฃใฆใใใใ
ใใผใฟใฎๅ่จ=(ๅนณๅๅค-0.3)ร20
=ๅนณๅๅคร20-6
ๅ
ใฎๅ่จใใ6ๆธใฃใฆใใ
Mathematics
Junior High
Resolved
๐ฉใชใใ๏ผ๏ผใโ๏ธใใใใใชใใ๏ผmๆธใฃใใจใใใใจใใใใใฎใงใใ๏ผ
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