The number of cars sold weekly by a new automobile dealership grows according to a linear growth model. The first week the dealership sold seven cars (Po= 7). The second week the dealership sold cars (P = 15). Write the recursive formula for the number of cars sold, P, in the (n + 1)th week. Pn=Pn-1 + Write the explicit formula for the number of cars sold, Pn, in the (n + 1)th week. Pr If this trend continues, how many cars will be sold in the fourth week? cars