The bakery bought 4 bags of flour containing 3.5 kg each. 0.475 kg of flour is needed to make a batch of muffins, and 0.65 kg is needed to make a loaf of bread. If 4 batches of muffins and 5 loaves of bread are baked, how much flour will be left? Give your answer in kilograms. - Please help me with this-