Safeway, Pleasanton, Calif., here said last week the acquisitions of Dominick's and Carr Gottstein Foods helped boost sales and earnings for the third quarter and 36 weeks ended Sept. 11. Sales rose 15.9% to $6.5 billion for the 12-week quarter and 13.9% to $18.9 billion for the year to date, and net income increased 15.3% to $223.4 million for the quarter.