planet monkey orbital distance 400234000 km d and time it takes planet monkey complete singl

planet Monkey orbital distance of 400,234,000 km (d), and the time it takes for planet Monkey to complete a single orbit, 8700 hours (t), find Planet Monkey’s orbital velocity (v).

 

Convert your answer to mm/hr. 1km=1000m.  1m=100cm.  1cm=10mm?