I-Solve the following word problem: Mr. Cortez bought 3 pocket books for P37.85 each and 6 posters for P21.75 each. How much was his change if he gave the seller a 1000 peso bill? 39. What is asked in the problem? 40-41. What are the hidden information that you need to solve first, before getting the final answer? 42. Write the complete equation: 43-44-Show your solutions (4) 45. The amount of change he received was​