HOW OLD WAS BILL GATES WHEN HE BECAME THE RICHEST MAN IN THE UNITE...
31. How old was Bill Gates when he became the richest man in the United States?
A. 34
B. 51
C. 42
D. 44
31. How old was Bill Gates when he became the richest man in the United States?
A. 34
B. 51
C. 42
D. 44