Answer:
it's a(n)=a(n-1)+a(n-2)
this is also known as Fibonacci sequence
0
1
1
2
3
5
8
13
21
34
55
89
144
233
377
610
Answer:
f(1) = -3 f(n) = 2 f(n - 1) + 1 f(2)
Alternate form:
{f(n) = -f(1)/3, f(n - 1) = f(1)/2 - f(2)/2}
Answer:

Step-by-step explanation:
Given


Required
Determine the number of bags sold
First, we need to determine the number of bags for 27 pears;
Since they are packed in 3s


Hence:
9 bags were used for 27 pears;
After 5 bags were sold, we have:


Recall that the pears are packed in 3s
So:

