Answer:
The answer is B. 30 seconds
a proportion is an amount of something compared to another, for example:
1 : 2
or
3 : 6
hope this helps
Well, if you say it's A... But that does make sense. Using the triangle inequality theorem, there is only one triangle you can make from that.
8,500,000
Round the number 4 to 5 because the number 7 is behind it.