Astore 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?

choices:
a. f(n) = f(n − 1) ⋅ 0.3 + 25, n > 0
b. f(n) = 100 − f(n − 1) ⋅ 0.3 + 25, n > 0
c. f(n) = f(n − 1) ⋅ 0.7 + 25, n > 0
d. f(n) = 100 − f(n − 1) ⋅ 0.7 + 25, n > 0

4. find the geometric mean of 4 and 12. 24 8

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.