Sage, Inc. used Excel to run a least-squares regression analysis, which resulted in the following output: 1 I Regression Statistics Multiple R 9.9809 R Square 8.9604 Observations 2e 8 I points Coefficients Standard Error T Stat P-VaLue Intercept 21,239 5,922 3.97 0.607 Production (X) 3.29 9.5399 6.26 0.606 a. What is Sage's total fixed cost? b. What is Sage's 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.)