By definition we have to: d = v * t Where, d: distance v: speed t: time Substituting values: d (t) = 2.36t For t = 6 we have: d (6) = 2.36 * (6) d (6) = 14.16 feet Answer: a rule to describe the function is: d (t) = 2.36t the snail will travel 14.16 feet in 6 minutes C. d (t) = 2.36t; 14.16 ft