The weekly revenue for a product is given by r(x)=356.4x-0.0585x^2, and the weekly cost is c(x)=9000+178.2x-0.117x^2+0.3x^3, where x is the number of units produced and sold. how many units will give the maximum profit?

Your friend swims on the school team. in his first four races, his times are 24.7, 23.5, 25.6, and 27.2 seconds. which time listed for his next race would make the range larger?

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.