Question 550469
P(n,r) = (n!)/((n-r)!)


P(9,2) = (9!)/((9-2)!)


P(9,2) = (9!)/(7!)


P(9,2) = (9*8*7!)/(7!)


P(9,2) = 9*8


P(9,2) = 72



So there are 72 ways.