Cassandra and AI are selling pies for a fundraiser. Cassandra sold 3 pies and 14 large pies for a total of $203. AI sold 11 small pies and 11 large pies for a total of $220. Determine the cost of each of one small pie and one large pie. a. write a system of equations and solve using substitution b. analyze the results. how can you verify that the solution is correct? c. use graphing calculator to plot both lines on the same coordinate plane. does the graph verify your solution?