Hope, Inc. has a standard variable overhead rate of $4 per machine hour, with each completed unit expected to take three machine hours to produce. A review of the company's accounting records found the following: Actual variable overhead: $210,000
Variable-overhead efficiency variance: $18,000U
Variable-overhead spending variance: $30,000F
How many units did Hope actually produce during the period?
a. 15,520.
b. 15,880.
c. 16,800.
d. 17,160.
e. none of the answers correct.

John has served as the chief operating officer (coo) for business graphics, inc., a publicly owned firm, the past 5 years. which of the following statements about john is correct? both john and the ceo of business graphics must certify to the sec that the firm's financial statements are accurate. as the coo, john will be ranked higher than the ceo but still below the cfo. in john's postition as the coo, it is highly unlikely that he would also be the chairperson of the board of directors. as the coo, john would typically be involved with accounting, finance, and asset purchase decisions.