(a) If we let x be the number of miles and y be the total cost, the equation for relating the number of miles and the total cost would be, y = 0.4x + 48
(b) If the rental cost is 60, 60 = 0.4x + 48 The value of x from the equation is 30.
(c) You may prepare the table of values by allowing x be any number and then solve for y until we arrive with an answer for y being equal to 60.
