I need to insert an image with this showing how I solved it so please do help me and explain

50 points~ ! i have to turn this in tomarrow

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test

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?