Set up a ratio for this problem:
.25 in/50 miles = 2.5 in/x
.25x = 125
then divide by .25
The actual distance is: 500 miles
In order to solve that, let's call 845 100%, as we're solving it terms of 845. 845 is 100%, then it follows that 8.45 is 1%.
Now we can see how many 8.45's go into 608, which comes out to 71.95266...%, which can be rounded nicely to 72%
The million doesn't matter.
About 348 hours. Hope this helps you out!
Answer: f(0) = 5.5 f(2) = 3.7
<u>Step-by-step explanation:</u>

When x = 0, f(x) = 5.5 <em>In other words, f(0) = 5.5</em>
When x = 2, f(x) = 3.7 <em>In other words, f(2) = 3.7</em>