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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?

Af(n) = 175 - 0.9 f(n - 1) + 10, f(0) = 175, n > 0
Bf(n) = 0.1 f(n - 1) + 10, f(0) = 175, n > 0
Cf(n) = 175 + 0.9 f(n - 1) + 10, f(0) = 175, n > 0
Df(n) = 0.9 f(n - 1) + 10, f(0) = 175, n > 0

Verified Answer :

MissPhiladelphia

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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.

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

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