j=14, k=j+8, l=2m, m=k-7
j=14, k=(14+8), l=2(k-7), m=(14+8)-7
j=14, k=22, l=2(22-7), m=22-7
j=14, k=22, l=30, m=15
And we are told that j+k+l+m+n=100, using j,k,l, and m found above:
14+22+30+15+n=100 combining like terms on left side
81+n=100 subtract 81 from both sides
n=19
So Nicky scored 19 points.