Gavin is signing up for a gym membership with a one-time fee to join and then a monthly fee to remain a member. Let C represent the total cost of the gym membership over t months. A graph of C is shown belo- Write an equation for C then state the slope of the graph and determine its interpretation in the context of the problem. Total Cost of Membership C 440 420 400 380 360 340 320 300 280 260 240 220 140 1004 Number of Months​