Need help with part C$?$ William Beville's computer training school, in Richmond, stocks workbooks with the following characteristics:

a$)$ The EOQ for the workbooks is $($round your response to the nearest whole number$).$

b$)$ What are the annual holding costs for the workbooks? $$990($round your response to the nearest whole number$).$

c$)$ What are the annual ordering costs? $ $($round your response to the nearest whole number$).$