1. solve the following proportion x/2 = 8/9 144 0.44 1.78 36 2. on a recent day, one u. s. dollar was worth 1.09 euros. if you were to exchange 157 euros on that day, how many u. s. dollars would you have received? $110.09 $144.04 $155.91 $171.13

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18