a. Accounts receivable at the beginning of the year are $4,020. The company has a 45 -day collection period. Calculate cash collections in each of the four quarters by completing the following: Note: Do not round intermediate calculations and round your answers to the nearest whole number, e.g., 32 . b. Accounts receivable at the beginning of the year are $4,020. The company has a 60 -day collection period. Calculate cash collections in each of the four quarters by completing the following: Note: Do not round intermediate calculations and round your answers to the nearest whole number, e.g., 32. c. Accounts receivable at the beginning of the year are $4,020. The company has a 30 -day collection period. Calculate cash collections in each of the four quarters by completing the following: Note: Do not round intermediate calculations and round your answers to the nearest whole number, e.g., 32