这个找成功的兔家的数学娃看看， 他英文比俺们强

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• 我相信他！ -眼镜- ♂ (0 bytes) () 08/11/2019 postreply 18:57:21

• Yes, he did screw it up. The problem description says x% discoun -czhz- ♀ (0 bytes) () 08/11/2019 postreply 19:50:59

• The problem description says x% discounted price, not x% off. -czhz- ♀ (0 bytes) () 08/11/2019 postreply 19:52:12

• and also use the "at" (at 20-70%), not off. -czhz- ♀ (0 bytes) () 08/11/2019 postreply 20:02:02

• at 28 to 70 percent discounted prices.(rephrase: it is a discoun -czhz- ♀ (0 bytes) () 08/11/2019 postreply 20:07:05

• (rephrase: it is a discounted price that is at the 20-70% level, -czhz- ♀ (0 bytes) () 08/11/2019 postreply 20:07:45

• so the answer should refer to that description. -czhz- ♀ (0 bytes) () 08/11/2019 postreply 20:08:42