Answer:
For B the answer is 1 : 30. For A the graph is Y goes up 2 for every 60 on the X.
Tn = a + (n-1)d
when n = 12, tn = 63
63 = a + (12-1)*5
a = 63 - 55 =8
tn or an
= 8 + (n-1) 5
= 3 + 5n
Hope this helps
I think it would be 23 bags without any cookies left over
Unfortunately I can not answer this question because there are no underlined digits in your question
