2193 x 10(little 37) over 79
or
≈2.77595 x 10(little 38)
3218.7/2 is 1 mile so answer is
2(3218.7/2)= 11265.45
Simple...
you have:

To make this into an improper fraction-->>
1.) Multiply whole number by denominator
2.)Add the number you got plus the numerator
3.) Use the original denominator to finish your improper fraction
Example:

4*9=36
36+4=40

Thus, your answer.
All i know is that if the radius of a circle is 4 feet, the the diameter is 8 feet. Sorry, I don't know the rest.
7. (4,5) 8. (5,-3) hope that helps