System A has ONE real solution
System B has NO real solutions
System C has ONE real solution
Answer: f(n+1) = 3 f(n)
Step-by-step explanation:
- A recursive formula is used to determine each term of a sequence using preceding term or terms.
Given sequence : 2.5, 7.5, 22.5, 67.5, 202.5,...
Here,

Common ratio = 3
Let f(n) be a term in this sequence then the next term will be f(n+1) = 3 f(n), where n is a natural number .
Required recursive formula : f(n+1) = 3 f(n)
2.50$ is the better deal. If you times 0.70$ to 5 it is 3.5$ which is more expensive
Answer:
31,564
Step-by-step explanation:
82,062 - 50,498 = 31,564