I need these problems worked out please.

Pretty Lady Cosmetic Products has an average production process time of forty days. Finished goods are kept on hand for an average of fifteen days before they are sold. Accounts receivable are outstanding an average of thirty-five days, and the firm receives forty days of credit on its purchases from suppliers.

• a.Estimate the average length of the firms short-term operating cycle. How often would the cycle turn over in a year?
• b.Assumenetsalesof$1,200,000andcostofgoodssoldof$900,000.Determinetheaverageinvestmentinaccountsreceivable,inventories,andaccountspayable.Whatwouldbethenetfinancingneedconsideringonlythesethreeaccounts?