An online book store has 182 boxes of books in its warehouse. Each box has 32 books. Part A Which equation represents the best estimate of the total number of books in the warehouse? A. 180 × 30 = 5 , 400 B. 180 × 40 = 7 , 200 C. 190 × 40 = 7 , 600 D. 200 × 40 = 8 , 000