please explane

4. At May 31, Holiday's cash balance is $10,000. Selling and administrative expenses (in addition to supplies) are budgeted to equal $45,000 for June and are payable in cash by June 30. Holiday has a line of credit that enables the agency to borrow funds on demand; however, they may only be borrowed on the last day of the month. In other words, Holiday must borrow funds needed during June on May 31. Holiday desires to maintain a $10,000 cash balance in its account. Considering all of the facts presented above, how much should Holiday plan to borrow on May 31