fordkt5012 fordkt5012 Today at 10:17 PM Computers and Technology Answered You want to add together the contents of three cells in your spreadsheet: B1, B2, and B3. Which formula would you use? A. =SUM(B1*B3) B. =SUM(B1/B3) C. =SUM(B1+ B3) D. =SUM(B1:B3)