One ton = 2000 lbs
Therefore, 1.5 tons = 3000 lbs
3000-300=2700lbs
5t+4>19------------------ > 5t > (19-4)
5t > (19-4)----------------- > 5t >15---------------- > t >15/5------ > t >3
the solution of this inequality is (3, ∞)
the answer is D. 4 or more times