You are asked to determine a location for a recycling depot serving three urban centres. They are: Smallville, population 900, at grid location (4.5,8.2); Bigburg, population 1,300, at grid location (0, 3.5); and Middleton, population 1,200, at grid location (7.4, 6.2). Determine the centre of gravity of the three locations. What other considerations might you take into account when choosing the location for the recycling depot