SIMON COMMENDS SADAT ON ECONOMY
US Treas Sec William E Simon praises Pres Sadat, news conf after 3-day visit, Cairo; says US will give Egypt $1.85-billion in econ and financial assistance in this and next fiscal yrs; says US assistance during fiscal '76 would be $940-million, including food aid, and for fiscal '77 about $915-million; says he and Sadat discussed idea of 'private-sector Marshall Plan'; says stimulation of private sector is only way Egypt can raise production and standard of living of its people; project reptdly has been held up because Egyptians have received bids for similar plants from Michelin of France and Dunlop of GB; pharmaceutical co Squibb and unidentified US chemical co have been on final stages of negotiations for several mos; sources say Simon urged Egyptian officials to clear way for 1 major US project that would 'prove to the world' that Western industries can function in Egypt; illus of Simon with Sadat and Vice Pres Husni Mubarak (M)