The following table gives the monthly E- Commerce Sales of 7 Online Stores and their corresponding Online Advertising Costs in Millions of Pesos. Note: The last row (except for n=7) are the summation of the values in each corresponding column. COMPANY SALES (x) Ad COST (Y) XY X42 1 18 0.8 14.4 324 2 19 0.85 16.15 361 3 33 1.4 46.2 1089 4 43 2.5 107.5 1849 5 15 0.6 9 225 6 24 1.2 28.8 576 7 20 0.72 14.4 400 n=7 172 8.07 236.45 4824What is the computed regression coefficient, a? Your answer What is the computed regression coefficient, b? Your answer Using the linear regression equation, project the Online Advertising Cost if the E-Commerce sales reach 25M? Your