Most leading rolls in Hollywood: John Wayne. Most prolific movie-producing country: India. http://www.geocities.com/CollegePark/Field/3228/numbers.html. Clint Eastwood is arguably the most prolific actor/director of all-time, having acted in more than 40 films and directed more than 20.
The cost of a concrete walkway can vary widely depending on its size and finish. Most U.S. homeowners pay between $6 and $12 per square foot for a new walkway. Prices can go beyond this if significant grading is required or a complex decorative finish is requested.
The cost of laying pipe is $200,000/km over land to a point P on the north bank and $400,000/km under the river to the tanks. To minimize the cost of the pipeline, how far from the refinery should P be located? (Round your answer to two decimal places.).