The population of small town is changing at a rate of -255 people per year. how long will it take for the change in population to be -2040 people?

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?

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?

How many and of which kind of roots does the equation f(x)=x3−x2−x+1