how do I solve this in Excel? Please show what you enter in excel formula bar.

Calculating the expected return on a stock, given the market risk premium, the stock's beta, and the T-bill rate Stock A has a beta = 1.30 and the the market risk premium is 8.1% If the T-bill rate increases from 0.9% to 1.6% what is the change in the expected return on Stock A? E(Ra) T-bill rate Old 0.9% New 1.6% Change in E(Ra)= 40% Estimating beta Using Excel's Trend Line Fitting Function Use the following information on monthly rates of return to make an estimate of Stock A's beta. Month Stock A Market 1 1.6% 1.1% 3.0% 1.4% 3-04 3 -27% -20% y=1.5583x +0.0037 204 beta-slope of fitted line- +0% 2 Stock A ROR 004 -20% -15% -1,0% 0546 0.0% 0.5% 10% 1.5% 2.0% -204 -30% 40% Market ROR