Question

A store had 100 t-shirts. Each month, 30% of the t-shirts were sold and 25 new t-shirts arrived in shipments. Which recursive function best represents the number of t-shirts in the store, given that f(0) = 100?

f(n) = f(n − 1) ⋅ 0.3 + 25, n > 0

f(n) = 100 − f(n − 1) ⋅ 0.3 + 25, n > 0

f(n) = f(n − 1) ⋅ 0.7 + 25, n > 0

f(n) = 100 − f(n − 1) ⋅ 0.7 + 25, n > 0

Answer 1

Which do you believe it is?

Answer 2

The second one.

Answer 3

f(n) = f(n - 1) • 0.7 + 25, n > 0

Answer 4

D is the best choice