Marseilles and Algiers lie on the same longitudinal line. Algiers is at 37latitude and Marseilles is at 47 degrees latitude. If the earth is a sphere of radius 4000 miles, use arc length to find the distance between the cities. JUse pi = 3.14 and round to the nearest mile.

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field