The table shows the participation in a schools debate club during the last four years between which two did the club see the greatest growth by what percent did it grow round to the nearest percent use the drop down menus to show and explain your answer

In a small section of a stadium there are 40 spectators watching a game between the cook islands and fiji. they all support at least one of the two teams. 25 spectators support the cook islands and 16 of these support both teams. how many support only fiji?