Is this answer right that I choose?

Acompany made a profit of 75000 over a period of 6 years on an initial investment of 15000 what is the annual roi

Which of the following scenarios demonstrates an exponential decay

If (x + 8) is a factor of f(x), which of the following must be true? both x = –8 and x = 8 are roots of f(x). neither x = –8 nor x = 8 is a root of f(x). f(–8) = 0 f(8) = 0