Q3 The formula for computing the predetermined manufacturing overhead rate is estimated annual overhead costs divided by an expected annual operating activity, expressed as (a) direct labor cost. (b) direct labor hours. (c)machine hours. (d)any of the above. Q4 Which of the following are considered to be management's three broad functions? (a)Planning, directing, and controlling (b)Planning, calculating, and controlling (c)Conducting, directing, manufacturing (d) Controlling, directing, manufacturing