Please help whats 1 4/6 plus 3

With number 11 ( show how you got the answer)

Aline has a slope of . which ordered pairs could be points on a parallel line? check all that apply. (-8, 8) and (2, 2) (-5, -1) and (0, 2) (-3, 6) and (6, -9) (-2, 1) and (3,-2) (0, 2) and (5,5)

Can someone plz me with 11,12,13 plz show work