The following numbers show the cost of renting a full-size rental car, based on the number of miles driven. (0 miles=$68.97), (50 miles=$88.47), (100 miles=$107.97), (150 miles=$124.97), (200 miles=$149.97). a) explain why a linear equation is appropriate for this relationship. b) find the slope of the line and interpret its meaning. c) find the y-intercept and interpret its meaning. d) determine the equation of the line. e) i'm trying to decide whether i can afford to drive to st. louis which is 180 miles away. how much would it cost for a one-way trip?