The three sides of a triangular piece of land, taken in order, measure 15, 10, and 13 chains respectively.

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The steamer, Katie, leaves the wharf at New Orleans and runs an average speed of 15 mph. When Katie had gone 25 miles, the steamer R.E. Lee leaves the wharf and runs the average speed of 18 mph. How far will the Lee go before she overtakes the Katie?

A brief outline of policies for submission of articles to Loci.

A merchant gave a university 2,814 ducats on the understanding that he was to be paid back 618 ducats per year for 9 years, at the end of which the 2,814 ducats should be considered as paid.

A biography of Gauss designed for high school students.

Having been given the lengths, a and b, of two straight lines drawn from the acute angles of a right triangle to the middle of the opposite sides, determine the length of those sides.

The 2006 Joint Mathematics Meetings in San Antonio, TX, January 12-15, 2006, have many sessions in the history of mathematics and their use in teaching.

This is an invited working conference as part of the ICMI Study Series.

There is a lion in a well whose depth is 50 palms. He climbs and slips back a certain amount each day. In how many days will he get out of the well?

Three images from Kepler's 1609 Astronomia Nova, the text in which he introduced his first two laws of planetary motion