My daughter's 3rd grade math. Need help...
JIAYANGGUIZI2
2010-01-17 18:40:17
( reads)
If Tony’s father must take a
different route every day to
prevent a robbery attempt,
how many different paths
down and to the left can he
take from the hotel to the
bank?
路过，所以飘过
2010-01-17 20:35:36回复：My daughter's 3rd grade math. Need help...