What is 641.0 to the nearest cent?

Why do you get headaches after you stop drinking alcohol after many years? Will your airbag explode if you remove your steering wheel? How were people able to survive in the dry deserts of the Southwest? When was Shutter Island released? When was Jie Chen born? Do you use sin on x or y components? Why do singaporean use singlish? A stock Kawasaki Mojave top speed? What uneven forces acting on the particles of a liquid's surface? How Wm-2 is the unit of energy? What are facts about tug of war? What should you do if you can feel part of your IUD outside of your cervix? What books did Carl Jung write? What is the root word of Indignation? Need assembly instructions for 3 room tent by vertical ascent? What does Eid mean in english? What is the difference between a hemostat and needle holders? What is comparing and ordering rational numbers? 1949 Mao Zedong est peoples republic of China? Can yeast go bad and become ineffective for baking?