please show work and include formula thanks

WACC. Grey's Pharmaceuticals has a new project that will require funding of $3.9 million. The company has decided to pursue an all-debt scenario. Grey's has made agreements with four lenders for the needed financing. These lenders will advance the following amounts at the interest rates shown: Click on the Icon in order to copy its content into a spreadsheet. What is the weiahted averace cost of canital for the $3.900.000? What is the weighted average cost of capital for the $3,900,000? \% (Round to two decimal places.)