This question seems to be incomplete, maybe there are diagrams which different cone shaped hat types. In that case, find the volume of each cone. The largest volume will be the answer. To solve for volume of a cone: V=πr2h/3 . So, it’s Pi times RAdius squared times height all divided by 3
234 trees in 6 days so you divide 234 by 6 (39) so she plants 39 each day. Now you divide 351 by 39 (9) so at that rate it'll take 9 days in total and 6 days have already passed. So, 3more days.