20:30 so it becomes 2:3 as a fraction it would be 2/3. a fraction is basically a ratio.
Answer:

Step-by-step explanation:
Apply FOIL method: 


Apply minus - plus rules


Simplify
Multiply 

Multiply 

Multiply 

Combine like terms

Multiply 


Oil and gas production would most likely stop because it is very dangerous to be outside in a hurricane.
The total of,
36
78
198
475
+620
-------
=1407
Hope this helps!=)