Discover Questions

A fair coin is tossed 5 times. What is the probability of at least one head? Round to the nearest ten-thousandth.? What would happen if the earth were out of orbit? What if the earth stopped traveling around the sun, but still spun on it axes? What type of structure is a three-ring binder? What is the order of ALL college calculus courses? And please don't say calc 1 2 3 4.? Is there a succinct mathematical symbol that describes, "but" or "though", just how there are symbols for less than or greater than?