Word Problem Best Answer,,, confusing?

To complete bookshelves, a customer needs to purchase vertical brackets to attach the wall. The customer wants the shelving to be 9 feet high and ten feet long. The wall brackets come in 48 inch and 60 inch sections. The 48 inch sections cost $12.95 and the 60 inch sections cost $16.95. The brackets should be one foot from each end and no more than 24 inches apart. What will be the total cost of the brackets, before tax?