Let f(x)=5x/x^2-7x+10. What is the domain of f(x)? A. all real numbers
B. ARN except x=2
C. ARN except x=2, x= -5
D. ARN except x=2, x=5

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.