Question 111904
cost+markup=selling price


1.  m=.124c ___ c+.124c=s ___ 1.124c=s ___ m/s = .124c/1.124c = .124/1.124


2.  m=.13s ___ c+.13s=s ___ c=.87s ___ m/c = .13s/.87s = .13/.87