"Revenue","Income","Age","Income sq","Age sq","(Income)( Age)"
1128,23.5,10.5,552.25,110.25,246.75
1005,17.6,7.2,309.76,51.84,126.72
1212,26.3,7.6,691.69,57.76,199.88
893,16.5,5.9,272.25,34.81,97.35
1073,22.3,6.6,497.29,43.56,147.18
1179,26.1,6.3,681.21,39.69,164.43
1109,24.3,12.1,590.49,146.41,294.03
1019,20.9,14.9,436.81,222.01,311.41
1228,27.1,8.9,734.41,79.21,241.19
812,15.6,3.4,243.36,11.56,53.04
1193,25.7,10.5,660.49,110.25,269.85
983,30.5,6,930.25,36,183
1281,26.5,8.6,702.25,73.96,227.9
1156,25.7,11.6,660.49,134.56,298.12
1032,21.8,13.7,475.24,187.69,298.66
856,33.6,5.8,1128.96,33.64,194.88
978,17.9,10.3,320.41,106.09,184.37
1017,18.3,5.3,334.89,28.09,96.99
1091,30.1,6.3,906.01,39.69,189.63
1048,29.8,5.3,888.04,28.09,157.94
1192,28.5,10.4,812.25,108.16,296.4
1256,27.5,8.7,756.25,75.69,239.25
1215,26.8,9.5,718.24,90.25,254.6
1233,24.3,8.3,590.49,68.89,201.69
950,17.8,6.1,316.84,37.21,108.58