Work Step by Step
We have: $N(t)=100t-5t^2$ and $c(N)=15000+8000N$ Therefore, the composite function will be: $C(N)=C[N(t)]=C(t) \\ =15000+8000N \\ =15000+8000(100t-5t^2) \\=15000+800,000t-40000t^2$
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.