It is 727 miles according to MapQuest.
Joplin, Mo to Denver, Co I'll tell you how far to go 700 miles from to to fro
About 820 miles
About 815 miles.
East St. Louis, MO
It is 850 miles via I-70.
Salina, KS
The shortest time is 12 hours and 32 minutes.
Hays, KS is roughly the halfway point. You should be able to reach Hays, form Denver on one tank of gas. Hays to Columbia is doable, but it might get tight. Hays is roughly 340 miles from Denver. From Hays to Columbia is roughly 390 miles.
It is 12 hours and 59 minutes according to MapQuest.
The driving distance from Denver CO to Branson MO is 807 road miles, using I-70 East.
It is 622.20 for an estimated 9 hour and 24 minute drove by MapQuest.
Google Maps estimates the driving time as 12.5 hours.