Sage, Inc. used Excel to run a least-squares regression analysis, which resulted in the following output: Regression Statistics Multiple R 0.9800 R Square 0.9604 Observations 20 Coefficients Standard Error T Stat P-Value Intercept 21,239 6,922 3.07 0.007 Production (X) 3.29 0.5309 6.20 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 they sold 12,000 units? (Round your intermediate calculations to 2 decimal places.)