(sat数学)for a certain fraction,if 2 is added(sat数学)for a certain fraction, if 2 is added to the denominator…[关键还是说一下题目什么意思]

(sat数学)for a certain fraction,if 2 is added(sat数学)for a certain fraction, if 2 is added to the denominator…[关键还是说一下题目什么意思] for certain reason还是for a certain reason a certain we have reached a certain respect for each other Your experience of entering for a certain kind of competition . are you certain ____ the facts? A about B for SAT数学,有关排列组合in a certain soccere league, each of the five teams plays every other team in the league exactly three times each season. How many games are played in total in one season?答案是30.为什么? know for certain是什么意思? 求教一道SAT的数学题：For a dog that weighs w pounds and is x inches long to qualify for a certain competition,the difference between w and 1.5x can be no more than 5.If a dog with length 24 inches qualifies for the competition,what is one po Won't it be better for me to ask you for help on a certain problem? just missed a certain date certain standard deduction for certain filers for certain=certainly吗? Is it ( ) that China will attend the party?Yes,that is for( )为什么选B,原因A.sure,certain B.certain,sure C.made sure,certain D.made certain,sure offers you a chance to live with a new family for a certain time SAT og 3道数学题,the total daily cost c,in dollars ,of producing x units of a certain prduct is given by the function c(x)5(600x-200)/x1k,where k is a constant and x#100.if 20 units were prducud yesterday for a total cost of $5640,what is the val a certain什么意思 in a certain way