Please help me how to solve it step-by-step on EXEL

You are required to use a financial calculator or spreadsheet (Excel) to solve 10 problems (provided on page 3) related to the cost of capital. You are required to show the following 3 steps for each problem (sample questions and solutions are provided for guidance): (0 Describe and interpret the assumptions related to the problem. (i) Apply the appropriate mathematical model to solve the problem. (ii) Calculate the correct solution to the