F(n)=−11+22(n−1) Complete the recursive formula of f(n)
f(1)=
f(n)=f(n-1)+

The anwser cause i do not understand just plez

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)

Acompany made a profit of 75000 over a period of 6 years on an initial investment of 15000 what is the annual roi