HELP!!!!
Economists find the company profit P by using the formula P=R-C where R is the total revenue generated by the business and C is the total cost of operating the business.
A) using data from past years, the economists determined that R(x) =0.0125x^2 +412x models total revenue, and C(x) = 12225 + 0.00135 x^3 models the total cost of doing business, where x is the number of customers patrnizing the business. how many customers must the company have to be profitable each year?
b) how many customers must there be for the company to realize an annual profit of $60,000??!?!???!?!

Question

valpey · Answer

$$P(x) = -0.00135 x^3  +0.0125x^2 +412x - 12225$$
a.) x is between 30 and 541
b.) x is between 201 and 429

valpey · Answer

http://www.wolframalpha.com/input/?i=60000+%3D+-0.00135+x%5E3++%2B0.0125x%5E2+%2B412x+-+12225

anonymous · Answer

how did u find between 30 and 541?