18-21 please help timed exam

22-24

18) comparing actual results to a budget based on the actual activity for the period is possible with the use of a A monthly budget. B. master budget. C, flexible budget D. rolling budget. 19) which of the following comparisons best isolates the impact that changes in operating efficiency have on performan A, static planning budget and fiexible budget B. static planning budget and actual results C. flexible budget and actual results D. master budget and static planning budget 20) Which of the following would produce a materials price variance? A. An excess quantity of materials used. B. An excess number of direct labor-hours worked in completing a job. C. Shipping materials to the plant by air freight rather than by truck. D. Breakage of materials in production. 21) The variance that is usually most useful in assessing the performance of the purchasing department mana A. the materials quantity variance. B. the materials price variance. C. the labor rate variance. D. the labor efficiency variance