A LP Product Mix problem has been modeled in Excel and solved by Excel Solver. Examine the Excel Output below after Solver has found a solution and answer the questions that follow the output. (Note that the output is presented in slightly different format than the format that we used in class.) Activity Activity 1 Activity 2 3 Unit Profit 20 40 30 Resource Resource Resource Usage per Unit of Activity 5 1 3 Resource 1 Resource 2 Resource 3 3 1 1 4 1 2 Used 400 100 200 Available 400 100 200 Activity 1 Activity 3 Activity 2 Total Profit Level of Activity 50 50 0 3,000