Answer:
7747
Step-by-step explanation:
8476 × 91.4%
=7747
∴ 7747 minor earthquakes occured in 2010
Step-by-step explanation:first I don't know
Second I don't know
And finally I don't know
Answer:never
the answer is 40
x+60
x=60-20
x=20
66
Use the combination formula.