A bus company found that at the beginning of june , it was costing $480 to run a particular route each month but that that mothly cost was increasing at a rate of $36 per month.Also, at that point in time , there were 940 passengers taking the route each month but that number was also increasing at a rate of 8 passengers per month each month.Given this determine the rate at which the company's per passenger cost for the route was changing as of the beginning of june.Label your results.