Answer:
thanks for points sis
Step-by-step explanation:
I am confused i think you didnt post all the info
The stuff in the circle is your answer.
Andrew= 4 yr.old
Sara=12 yr. old
Tom= 12 yr. old
Basically, what I did was guess and check, but there are other ways also. When I came with Andrew's age of 5 and it was pretty close, I went down to 4 years old and that worked perfect because that way both Tom and Sara are 12 years old.