Please helpp!!! Im putting 50

Answer:
I believe the answer to a) is $985
I think the answer for b) is 89 people
Step-by-step explanation:
You plug in the numbers for either n or c
You might want a second opinion though.
I hope this helped!! :)
Answer:
a) $985
b) 89
Step-by-step explanation:
a)
C(117) = 400 + 5(117)
= 985
b)
845 = 400 + 5n
5n = 445
n = 89