According to Carole Vickers, family/home management history can be divided into four principal eras. Era one (1900-1930s) focused on:.
a. household equipment and task management.
b. household production, hygiene, and sanitation.
c. values and decision making.
d. the systems approach to quality management.

Turrubiates corporation makes a product that uses a material with the following standards standard quantity 8.0 liters per unit standard price $2.50 per liter standard cost $20.00 per unit the company budgeted for production of 3,800 units in april, but actual production was 3,900 units. the company used 32,000 liters of direct material to produce this output. the company purchased 20,100 liters of the direct material at $2.6 per liter. the direct materials purchases variance is computed when the materials are purchased. the materials quantity variance for april is: