<sod > Tesco has reached an agreement to merge with food wholesaler Booker in a PS3.7billion deal Tesco chief executive Dave Lewis said: 'Tesco has made significant progress in turning around our UK retail business.< eod>< sod > (right) have reached an agreement to merge in a PS3.7 billion deal Tesco chief executive Dave Lewis said: 'Tesco has made significant progress in turning around our UK retail business.< eod>