Answer:

Paul: 4( 130 ) + 3( 0 ) + 2( 250 ) + 1( 120 ) = 520 + 0 + 500 + 120 = 1140
Rita: 4( 0 ) + 3( 500 ) + 2( 0 ) + 1( 0 ) = 0 + 1500 + 0 + 0 = 1500
Sarah: 4( 150 ) + 3( 0 ) + 2( 250 ) + 1( 100 ) = 600 + 0 + 500 + 100 = 1200
Tim: 4( 220 ) + 3( 0 ) + 2( 0 ) + 1( 280 ) = 880 + 0 + 0 + 280 = 1160

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