Brady is constructing wooden airplanes and wooden trucks. each truck requires twice the number of wheels as each airplane. he plans to make 3 airplanes and 5 trucks. he writes the expression 5(2x) 3(x) to model his construction plans. what does the entire expression represent? a the total number of airplanes and trucks b the total number of wheels needed for the airplanes and trucks c the total number of wheels needed for the airplanes d the total number of wheels needed for the trucks