The answer is 0.806 I believe. The whole process was far too much to type onto hear because I don't want you to be reading an essay if you're in a hurry.
Ok so, Since Kelli and her family drove a total of 293 miles in 7 hours, then your equation should be Now, since you have your ratio you divide 293 by 7 in order to get how many miles were driven in one hour = 41.85714286 miles/hr