answer a&b please!!!

P9-73 (similar to) Question Help WACC Market value weights The market values and after-tax costs of various sources of capital used by Ridge Tool are shown in the following table ! a. Calculate the firm's weighted average cost of capital b. Explain how the firm can use this cost in the investment decision-making process a. The firm's weighted average cost of capital, using market value weights is . %. (Round to two decimal places) Data Table (Click on the icon located on the top right corner of the data table below in order to copy its contents into spreadsheet Source of capital Long term debt Preferred stock Common stock equity Market value $850.000 $70,000 $450,000 Individual cost 68 107% 171 Print Done