Algebra
posted by Anonymous .
Biologists want to set up a station to test alligators in the lake for West Nile Virus. Suppose that the costs for such a station are $2,500 for setup costs and $3.00 to administer each test.
Would the average cost ever fall below $3.00? If so, identify a value that supports your answer. If not, explain how you know.
e. How many animals should be tested for the average cost to be $5.00 per animal?

If each test = $3.00, how can the average cost get below that point?
e. 2500 + 3n = 5n
Solve for n.