1) Let's convert it to kilometers, using for that a Rule of three
1 mile ---------- 1.600 km
3 -----------------x
2) Multiplying it crossed
3*1.600=1x
4800=x
x = 48
If you are trying to find the slope of a line that is perpendicular to another line, you would need to change the sign and change it to the fraction's reciprocal.
m = 
Change the sign of the slope:

Finally, make the reciprocal of the original slope (switching the numerator and denominator):

Simplify:
3
Final answer:

Answer: M = - 2/3
Step-by-step explanation:
Not sure this should be the answer tho
I’m pretty sure that it’s b