Question
13 years ago, Bobby was 7d years old.
  1. How old was Bobby 5d years ago?
  2. How old will Bobby be 3d years later?
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

13 years ago, Bobby was 7d years old.
  1. How old was Bobby 5d years ago?
  2. How old will Bobby be 3d years later?