How did Rene descartes discover the coordinate plene?

What is 5 over 8 minus 2 over 3? What is seven eights equal? How many corner of triangular prism? What is the name for a 3D sphere? What does 330 kmh equal to? Can be didvided by a number without leaving a remainder? Items that come in groups of 11? What was the purpose of the abacus? Why aren't all negative numbers integers? The angle sum of a pentagon in degrees? Does a rectangular prism have 10 bases? If a circular garden has a diameter of 12 feet how many bags of topsoil must you buy to cover the garden if one bag covers an area of three square feet? Should the quotient of an integer divided by a non zero integer always be a rational number? What is 2 plus 2 using the binary system? What is the function-of the teievision? How many Fahrenheit are there in 1 centigrade? Does a rombus have equal or parallel sides? How would you get the answer of one when you have to use five three's in a math operation? What is the percent of 2 out of 24? How many lbs does 0.16 oz weigh?