Lance would have to pay $437.1125 more for the marble countertop than the granite countertop .
Cost of granite per square feet = $ 42.78
Cost of marble per square feet = $ 57.23
Lance needs 30.25 square feet of countertop,
therefore ,
if he use granite , he would have to pay
30.25 * ( 42.78 ) = $ 1294.095
if he use marble , he would have to pay
30.25 * ( 57.23 ) = $ 1731.2075
Hence , he would have to pay $ 1731.2075 - $ 1294.095 = $437.1125 more for the marble countertop than the granite countertop .
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