Question 1006184
Assume a circular orbit.
the radius is 1.7X10^6 km
the circumference is 2*pi*r=10.676 * 10^6 km.
It goes around the star in 3.88 days, which is 24*3.88 =93.12 hours
divide 10.676^10^6 km by 9.312 *10^1 hours (or 10676000 by 93.12)
114,646 km/h or 115,000 km/h
The radius gives you the circumference, and you divide the circumference in km by time in hours and get speed in km/h.