Question

A store had 175 cell phones in the month of January. Every month, 10% of the cell phones were sold and 10 new cell phones were stocked in the store.

Which recursive function best represents the number of cell phones in the store f(n) after n months?
(A) f(n) = 175 - 0.9 * f(n - 1) + 10, f(0) = 175, n > 0
(B) f(n) = 0.1 * f(n - 1) + 10, f(0) = 175, n > 0
(C) f(n) = 175 + 0.9 * f(n - 1) + 10, f(0) = 175, n > 0
(D) f(n) = 0.9 * f(n - 1) + 10, f(0) = 175, n > 0

Answer 1

Thank you for posting your question here at brainly. Feel free to ask more questions.  

The best and most correct answer among the choices provided by the question is (D) f(n) = 0.9 * f(n - 1) + 10, f(0) = 175, n > 0 .        
    
Hope my answer would be a great help for you.

Answer 2

The best answer from these answer choices is (D) f(n)=0.9*f(n-1)+0,f(0)=175,n>0