PLEASE HELP Roberto has already run Roberto has already run 16 of 26.2 miles of a marathon.
Rounded to the nearest whole number, what percent of the marathon has he completed?

A)16%.
B)26%.
C)50%.
D)61%.

its 8

step-by-step explanation:

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).

its kinda hard to answer this when we dont have all the information that we need.