Answer:
1.A
2.A
3.D
4.A
5.A
Step-by-step explanation:
F(n)=f(n+1)=f(n+1)-5 because in the formula you are subtractinng
The only way a quotient can be undefined is if the denominator, or divisor, is 0
6! is the factorial of 6, or 6*5*4*3*2*1.. it equals 720
