need to solve a&b please

A methanol stream from a distillation column is flowing at 6,000lb/m/hr to be cooled from 130F to 70F using 12,000lb/hr of cooling water at 40F. The convective heat transfer resistance on the methanol side was estimated to be 0.003ft2hF/ Btu. Assume that the metallic wall conductive resistance is 0.001ft2hF/Btu and the water side resistance, including the fouling resistance, is 0.002ft2hF/Btu. (a) What outside area ( in ft2 ) is needed for a co-current flow heat exchanger? (b) What outside area ( in ft2) is needed for a countercurrent flow heat exchanger? Data: Methanol Cp=0.62Btu/lbmF, Water Cp=1.00Btu/lbmF