文档介绍：百分数一、,发现有4个不合格,合格率是98%,,%,如果需要380棵大豆苗,,=________×100%=________%=,,优秀的30人,良好10人,及格6人,,应缴税款5100元, 是原价的________ %. 二、(  )A. 150%                                   B. 15%                                   C. %                                   D. %,如按营业额的5%缴纳营业税,这家火锅店11月份应缴纳的营业税(  ). 4                                              B. 5                                              C. ,按8成销售,买两个这样的保温杯比原来便宜(  )元。A. 20                                        B. 80                                        C. 40                                        D. ,,稿酬扣除800元后的余额部分,按20%,马老师缴纳了(  ). 450                                      B. 280                                      C. 400                                      D. ,现以七折出售,现在售价(  )A. 2571元                               B. 2520元                               C. 630元                               D. ,先打八折出售,后又在八折基础上又打七五折出售,每件售价150元,这件上衣原售价是(  )A. 250元                                B.                                 C. 200元