The profit in dollars from the sale of x expensive watches is P(x)=0.02×2−2x+5×0.3−4600.

Find the marginal profit when (a) x=500, (b) x=2000, (c) x=6000, and (d) x= 12,000 [Round to the nearest integer as needed.]

The profit in dollars from the sale of x expensive watches is P(x)=0.02×2−2x+5×0.3−4600.

Find the marginal profit when (a) x=500, (b) x=2000, (c) x=6000, and (d) x= 12,000 [Round to the nearest integer as needed.]