health Construction builds standard prefabricated wooden frames for walls. Each frame requires 10 direct labot hours and the standard hourly direct labor rate is $ 18. During July, the company produced 670 frames and worked 6,800 direct labor hours. Payroll records indicate that workers earned $ 127, 500. a. What were the standard hours for July construction? b. Calculate the direct labor variances. c. What was the actual hourly wage rate