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A barrel has various holes in it. The fist hole empties the barrel in three days...
Assume that the human population after the flood was 6 and that 200 years later the population was 1,000,000. Find the annual growth of the population.
A man agreed to pay for 13 valuable houses worth $5000 each, what the last would amount to, reckoning 7 cents for the first, 4 times 7 cents for the second, and so on, increasing the price 4 times on each to the last.
This meeting will take place at the MAA Carriage House in Washington, DC on April 19, 2008.
A wooden log is encased in a wall. If we cut part of the wall away to a depth of 1 inch...
A description of a Research Experience for Undergraduates conducted in 2007 at Hood College.
A square walled city measures 10 li on each side. At the center of each side is a gate. Two persons start walking from the center of the city.
Eratosthenes' measurement of the earth, in a form that's easy for teachers to use in the classroom.
Given a right triangle where you know the length of the base and the sum of the perpendicular side and the hypotenuse.

The author takes us on a historical tour of mathematics through postage stamps of the world that display mathematicians and mathematics.