a cable is to be installed from a house to a transformer atop a telephone pole down the road. part of the cable will be installed underground with a cost of $180 per foot and the other part will installed atop the telephone poles running along a straight road in front of the house with a cost of $80 per foot. the house is 60 feet away from the straight road and the transformer is 200 feet down the road from the point where the house is closest to the road. ignoring the height of the telephone poles, what is the cheapest cost of installing the cable? below is a picture representing the scenario where x represents the distance along the road where the underground cable from the house attaches to a telephone pole. round your final answer to the nearest dollar