You use a microscope to look at bacteria that is 0.0034 millimeter long . the microscope magnifies the bacteria 430 times. how long does the bacteria appear to be when you look at it through the microscope

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?