When did the millennium dome open and close?

Aconstruction company is creating a powerpoint presentation describing how they calculate costs during each construction step. they plan to email this presentation to clients. the individual clients will be watching the presentation slide show on their own personal computers. what is the most important formatting step the company should take to make the text readable and pleasing to the eye?

Octothorpe is another name for what common computer keyboard symbol?

List the five on-board vehicle subsystems