Pretty sure just draw same line but a to r and b to s
1 yard is 3ft, so just multiply 2.5 with 3 and that gives u 7.5.
Answer:
Option (B)
Step-by-step explanation:
Given sequence is 45, 135, 405, 1215, 3645..........
Since it's a geometric sequence,
Common ratio of each successive term to the previous term
r = 
First term of the sequence 'a' = 45
Explicit formula of a geometric sequence will be,


Recursive formula of this sequence will be,
, 
Therefore, Option (B) will be the answer.
Answer:
B
Step-by-step explanation: