Question

A store had 235 MP3 players in the month of January. Every month ,30% of the MP3 players were sold and 50 new MP3 players were stocked in the store. Witch recursive best represents the number of MP3 players in the store f(n) after n months?

Answer 1

f(n)=235-(235*.3^n)+50n is your equation where * is multiplication and ^ it to the power to.