Solve clearly, explanation is more important, don't copy.

Exhibit 22-3 Marginal Physical Total Variable Fixed Product of Variable Total Fixed Cost Variable Marginal Input Input Output Input Cost Cost (units) (units) (units) (units) (dollars) (dollars) (dollars) 0 0 $500 10 (A) $500 $200 (E) 1 25 (B) $500 $400 (G) 3 1 45 (C) $500 $600 (H) 4 60 (D) $500 $800 (D) 70 (E) $500 $1000 Refer to Exhibit 22-3. The marginal cost figures in blanks (F) and (G), respectively, are