powergamez35 powergamez35 27-01-2020 Mathematics contestada Lina is making a spreadsheet for an assignment. The spreadsheet, when completed, will be 212 lines long, and Lina has already completed 74 lines. x + 74 = 212 How many lines does Lina have left to complete? A. 138 B. 249 C. 286 D. 64