Raymond B. answered 09/21/22
Math, microeconomics or criminal justice
she started with $50
she spent $10 on a book, leaving $40
then she spent half on a train ticket, leaving $20
then she spent $4 on lunch, leaving $16
then she spent half at the bizaar, leaving $8
Christie started with $50, ending with $8
x-10 -(x-10)/2 - 4 - [(x-10)/2-4]/2 = 8
x-10-x/2+5 -4-x/4+10/4+2 = 8
x/4 =12 1/2
x = 4(12.5) = 50
x=50