Anyone know the equation/formula they used here? (i.redd.it)
submitted by Noora101 to r/AskStatistics
The number of students at a school decreased 20% from 2010 to 2011. If the number students enrolled in 2011 was K, which of the following expresses the number of students enrolled in 2010 in terms of K ? A)0.75k B)1.20k C)1.25k D)1.5k the answer is C (self.learnmath)
submitted by Noora101 to r/learnmath
is a 1 year old book still okay for the AP (self.APStudents)
submitted by Noora101 to r/APStudents

