The following are three small questions in a big question, please help me answer, thank you

A company has two production (Cutting and Packing) departments and one service department (Personnel). The data for the next production period is as follows: Cutting Packing Personnel 133,000 158,000 53,000 59,000 30,000 Total overheads () Machine hours (hrs) Labour hours No of employees Labour hour rate () 23,000 31,000 575 775 16 6.30 8.50 6.23 All employees make use of the Personnel department. The company is calculating its overhead recovery rates. Calculate the machine hour rate for overhead recovery in the Cutting Deptartment. Calculate and enter your answer in the same format as the labour hour rate. During the financial year a trader made payments totalling 235,500 to suppliers. At the start of the year the trader owed 29,400 to suppliers. At the end of the year the trader owed 23,600 to suppliers. What were the trader's purchases for the year? During the financial year a trader collected payments totalling 3,655,000 from customers. At the end of the year the trader was owed 365,500 by customers. At the start of the year the trader was owed 456,900 by customers. What were the trader's sales for the year