Question
13 years ago, Peter was 7a years old.
  1. How old was Peter 4a years ago?
  2. How old will Peter be 3a 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, Peter was 7a years old.
  1. How old was Peter 4a years ago?
  2. How old will Peter be 3a years later?