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.

Which recursive function best represents the number of MP3 players in the store f(n) after n months?

A. f(n) = 0.7 × f(n - 1) + 50, f(0) = 235, n > 0
B.f(n) = 237 - 0.7 × f(n - 1) + 50, f(0) = 235, n > 0
C.f(n) = 0.3 × f(n - 1) + 50, f(0) = 235, n > 0
D.f(n) = 237 + 0.7 × f(n - 1) + 50, f(0) = 235, n > 0

Answer 1

I think it is A, but not sure.

Answer 2

Can someone explain to me ? :/

Answer 3

https://akk.li/pics/anne.jpg

Answer 4

@Hemantotherescuejk
You're creepy, man.

Answer 5

Now I can never sleep again

Answer 6

Haha lol it scared the junk outta me lol