As a student you are told to acquire the following textbooks; 5mathematics, 3physics, 8chemistry, 10biology, 12english, each of these costs N900, 700, 650, 500 and 400 respectively. Find the total cost of the textbooks?, find the sub-take cost of the textbooks?, find the VAT of the textbook if the textbook vat is 5%?, find the actual cost of the textbook?