【翻译一道英文出的数学题Phillipcharged$400worthofgoodsonhiscreditcard.Onhisfirstbill,hewasnotchargedanyinterest,andhemadeapaymentof$20.Hethenchargedanother$18worthofgoods.Onhissecondbillamonthlater,h】

　　翻译一道英文出的数学题

　　Phillipcharged$400worthofgoodsonhiscreditcard.Onhisfirstbill,hewasnotchargedanyinterest,andhemadeapaymentof$20.Hethenchargedanother$18worthofgoods.Onhissecondbillamonthlater,hewascharged2%interestonhisentireunpaidbalance.HowmuchinterestwasPhillipchargedonhissecondbill?

　　A.$8.76

　　B.$7.96

　　C.$7.60

　　D.$7.24

　　E.$6.63