Profit, P(x), is the difference between revenue, R(x), and cost, C(x), so P(x) = R(x).Which expression represents P(x), if R(x) = 2x4-3x3+2x-1 and C(x) = x4-x2+2x+3?

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?

Find the distance between the point (-3,-4), and (see the picture below)

The sum of two consecutive mile markers on the interstate is 417417. find the numbers on the markers