Austin is baking apple pies and apple cakes. each pie takes three times the number of apples as each cake. he plans to make 2 pies and 4 cakes. he wrote down the expression 2(3x) + 4(x) to model his baking plans. what does this entire expression represent

This entire expression gives the total number of apples required to make 2 pies and 4 cakes.

x is the number of apples for a cake.  3x would be the number of apples it takes to make a pie.  2(3x) would be the apples for 2 pies and 4(x) would be the number of apples for 4 cakes.