The cost for system 1 of dispensing maps is: Y = 0.4 X + 8000, where Y = Total Costs in $, X=total number of maps dispensed (in a year).At 5000 maps per year, what is the marginal cost and what is the average cost? [Tip: marginal cost means what is your additional cost by dispensing one more map. average cost means what is the cost per one map [for 5000 maps total]]