need some helps pls

The projected consolidated net revenue of the country's telecommunication leader, Philippine Long Distance Telephone Company {PLDT} is 913.3 billion at the end of this year. However, with the expected entry of the third licensed telecom player, DITO Telecommunityr next year, some loss in subscribers for PLDT is inevitable. Assuming that if the business model for the entry of DITO will not change, the revenue of PLDT is projected to only reach Fig.3 billion in 5 years. a} Determine the expected decrease of revenue each year. Write your answer below, and show the complete solution in your solution sheet. [5 points] bl Under the given business model, how much will be the revenue of PLDT after 10 years? Write your answer below, and show the complete solution in your solution sheet. [2 points] c} Draw the Cash Flow Diagram of the annual revenue of PLDT in 1D-year period in your solution sheet. [3 points] d} Determine the equivalent uniform worth of the losses in the 10-year period at an interest rate of 8% per year. Write your answer below, and show the complete solution in your solution sheet. [5 points]