Answer :

naǫ
[tex]686.13 \approx 700 \\ 9.231 \approx 10 \\ \\ 686.13 \div 9.231 \approx 700 \div 10 = \boxed{70} \Leftarrow \hbox{answer C}[/tex]

Answer:

C.70  hope this helped

Step-by-step explanation: