Consider g(t) = 7t(In(3t) ) 3 Determine the intervals on which g is concave down. g is concave down on: O g is concave down nowhere. Determine the intervals on which g is concave up. g is concave up on: O g is concave up nowhere. Determine the value and location of any inflection point of g. Enter the solution in (t, g(t) ) form. If multiple solutions exist, use a comma-separated list to enter the solutions. g has an inflection point at