Fibonacci is famous for his contributions to number theory.
In his book, Liber abaci he introduce the Hindu-Arabic place-valued decimal systems and the use of Arabic Numerals into Europe.He introduced the bar we use in fractions, previous to this, the numerator has quotations around it. The square root notation is also is Fibonacci method.
Answer:
Yes I think so
Step-by-step explanation:
A. 9 and 7+2x
B. 1 and 2 respectively.
C. 2 from 2x
On the first day of school last year, Cody was 148.5 cm tall.