Sage, Inc. used Excel to run a least-squares regression analysis, which resulted in the following output: Regression Statistics Multiple R 0.9755 R Square 0.9517 Observations 30 Coefficients Standard Error T Stat P-Value Intercept 28,764 3,603 2.84 0.021 Production (X) 10.38 0.4641 14.51 0.000 a. What is Sages total fixed cost? b. What is Sages variable cost per unit? (Round your answer to 2 decimal places.) c. What total cost would Sage predict for a month in which