Posted by Dani on Wednesday, September 19, 2007 at 8:04pm.
how old was a person exaactly one year ago is exactly x years ago the person was y years old?
choices
y1
yx1
xy1
y+x+1
y+x1

MAth  bobpursley, Wednesday, September 19, 2007 at 9:04pm
I do not understand the question.