How a translation of Peano's counterexample to the 'theorem' that a zero Wronskian implies linear dependence can help your differential equations students

Individual problems from throughout mathematics history, as well as articles that include problem sets for students.

Given the frustum of a circular cone with height h.

What is the perpendicular height of a cloud when it's angles of elevation were 35 degrees and 64 degrees as taken by two observers?

How much does Landowner A give to each worker knowing Landowner B gives a certain amount more and has few workers.

When knowing the sum of their ages along with another equation, determine how old a father and son are.

Discussion of 15th century French manuscript, with translation of its problems, including one with negative solutions

There is a garden is the shape of a rhombus whose side is 768.52 feet. Within the garden is an inscribed square flower bed whose side is 396 feet. What is the area of the garden?

A California miner has a spherical ball of gold, 2 inches in diamter, which he wants to exchange for spherical balls 1 inch in diameter. How many of the smaller spheres should he receive?

The sum of two numbers is 10 and their product is 40. What are the numbers?

The purchase price for an apple and an orange is 100 yen. When n oranges and n + 3 apples are bought the price is 520 yen. Find the number n of oranges and the price of one orange.