Ace Architects employs two architects, each having a different area of specialization, Caitlin specializes in industrial commercial construction and Zachary specializes in residential construction. Ace expects to incur total overhead costs of $179,625 during the year and applies overhead based on annual salary costs. Caitin is a senior parther, her annual salary is $168,750, and she is expected to bill 2,000 hours during the year. Zachary is a senior associate, his annual salary is $91,125, and he is expected to bill 1,800 hours during the year. Required: a. Calculate the predetermined overhead rate. b. Assuming that the hourly billing rate should be set to cover the total cost of services plus a 20% markup, compute the hourly biling rates for Judy and Steve. Complete this question by entering your answers in the tabs below. Calculate the predetermined overhead rate