Happy 100th Birthday, Olivia de Havilland! 10 Facts About the Screen Legend. As we celebrate Olivia de Havilland's 100th birthday, here's a look a her legendary life and career.
The cost of laying pipe is $200,000 per km over land to a point P on the north bank and $400,000 per km under the river to the tanks. To minimize the cost of the pipeline, how far down river from the refinery should the point P be located?
On average, concrete slabs can cost anywhere from $75 to $110 per square metre. That's still quite a spread, but it gives you a starting point for comparing quotes.