Question
15 years ago, David was 7h years old.
  1. How old was David 4h years ago?
  2. How old will David be 2h years later?
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

15 years ago, David was 7h years old.
  1. How old was David 4h years ago?
  2. How old will David be 2h years later?