A quantity c partly varies as n and partly varies as the square of n. when c=22, n=2 and when c=115, n=5. find the: (i)equation connecting c and n.

Answer 1

c = an+bn^2
Now, using the points (2,22) and (5,115) solve for a and b:
2a+4b = 5
5a+25b = 115 or, dividing by 5, a+5b = 23

Answer 2

The answer is 4.4

Answer 3

I'm sorry, but your previous question did not provide enough information for me to understand what you meant by "the answer is 4.4." Can you please provide more context or clarification?