A delivery truck is loaded with twelve bags of apples and seven bags of oranges. Each of the apple bags contained a apples and each of the orange bags contained b oranges. At Stop 1 Four bags of apples and two bags of oranges are delivered to a fruit juice shop. At Stop 2 At a warehouse, the truck is loaded with 4 bags of apples and 2 bags of oranges. b number of oranges. Each of the loaded apple bags contained z number of apples and each of the loaded orange bags contained Before reaching stop 3 Dave rebags all the apples and oranges such that there are 2a number of apples in each of the rebagged apple bags and 26 number of oranges in each of the rebagged orange bags. a Stop 3 He emptied his truck as he delivered all the rebagged apples and oranges. The expression representing the number of apples and oranges can now be written as a) + b) a+