can someone explain/show equations on how the numbers were found? please use Excel

A B E M[ 1 2 3 4 5 6 7 olu 8 9 10 11 12 Ers) Elrs) 10 5 Portfolio Weights Ws - 1 - We WB -0.2 1.2 -0.1 1.1 0.0 1.0 0.0932 0.9068 0.1 0.9 0.2 0.8 0.3 0.7 0.4 0.6 0.5 0.5 0.6 0.4 0.3 0.8 0.2 0.9 0.1 1.0 0.0 1.1 -0.1 1.2 -0.2 D Input Data os 19 8 Expected Return, E(rp) Col A'A3 + Col B'B3 4.0 4.5 5.0 5.5 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 PBS 0.2 Std Dev (Equation 6.6) 9.59 8.62 8.00 7.804 7.81 8.07 8.75 9.77 11.02 12.44 13.98 15.60 17.28 19.00 20.75 22.53 13 14 15 16 0.7 P8555 17 18 19 20 21 A B E M[ 1 2 3 4 5 6 7 olu 8 9 10 11 12 Ers) Elrs) 10 5 Portfolio Weights Ws - 1 - We WB -0.2 1.2 -0.1 1.1 0.0 1.0 0.0932 0.9068 0.1 0.9 0.2 0.8 0.3 0.7 0.4 0.6 0.5 0.5 0.6 0.4 0.3 0.8 0.2 0.9 0.1 1.0 0.0 1.1 -0.1 1.2 -0.2 D Input Data os 19 8 Expected Return, E(rp) Col A'A3 + Col B'B3 4.0 4.5 5.0 5.5 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 PBS 0.2 Std Dev (Equation 6.6) 9.59 8.62 8.00 7.804 7.81 8.07 8.75 9.77 11.02 12.44 13.98 15.60 17.28 19.00 20.75 22.53 13 14 15 16 0.7 P8555 17 18 19 20 21