I am having trouble with Overhead Rate in Req. (a)(which is 57) x Processing hours for each product = Overhead for each. what i am stuck on: Add all overhead amounts to obtain the total. Divide individual overhead amounts by budgeted production volume for each product to obtain overhead per unit. Factory overhead is allocated to the three products on the basis of processing hours. The products had the following production budget and processing hours per case:

Budgeted Volume (Cases) Tortilla chips 3,8000 Potato chips 4,6000 Pretzels 2,8000 Total11,200 Processing Hours per Case Tortilla chips .21 potato chips .13 pretzels .45