A canoeist is 300 m offshore and wishes to land and then walk to a distant point on the straight shoreline. If she can paddle at 3 km/h and walk at 5 km/h, where should she land to minimize her travel time? Distant Point 300 m - bt 4. A publisher finds that the special edition of his new travel directory will sell x thousand copies if the price per copy is 30 x dollars. The cost of publishing and selling x thousand copies is C(x) = 30 000 + 10 000x + 2000x /x dollars. Find the optimum volume and price and calculate the expected profit. A builder must fence three adjacent lots on Perimeter Parkway, each lot having an area of 675 m?. Front-line fencing costs $25/m, while side and rear-line fencing cost $10/m. Find the dimensions of each lot that yield the least possible fencing cost