I ONLY NEED HELP WITH 6-7 PLEASE THEY ARE ALL RELATED TO THE SAME QUESTIONS. PLEASE SHOW EXPLANIATION. THANKS

Highland Company produces a lightweight backpack that is popular with college students. Standard variable costs relating to a single backpack are given below: Standard Quantity Standard Price Standard or Hours or Rate Cost Direct materials ? $5.60 per yard $? Direct labor ? ? ? Variable manufacturing overhead ? $2 per direct ? labor-hour Total standard cost $? Overhead is applied to production on the basis of direct labor-hours. During March, 1,000 backpacks were manufactured and sold. Selected information relating to the month's production is given below: Variable Manufacturing Overhead $2,000 $184 Materials Used Direct Labor Total standard cost allowed* $22,400 $11,500 Actual costs incurred $18,952 ? Materials price variance ? Materials quantity variance $ 672 U Labor rate variance Labor efficiency variance Variable overhead rate variance Variable overhead efficiency variance *For the month's production. The following additional information is available for March's production: 2 ? Actual direct labor-hours Difference between standard and actual cost per backpack produced during March 1,420 $0.15 F Required: 1. What is the standard cost of a single backpack? 6. What was the labor rate variance for March? The labor efficiency variance? (Do not round your intermediate calculations. Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance) Answer is complete but not entirely correct. Labor rate variance Labor efficiency variance $ 497 F $ 4,830 u 7. What was the variable overhead rate variance for March? The variable overhead efficiency variance? (Do not round intermediate calculations. Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance)) Answer is complete but not entirely correct. Variable overhead rate variance Variable overhead efficiency variance $ $ 213 F 840 U 8. Prepare a standard cost card for one backpack. (Round your answers to 2 decimal places.) Answer is complete but not entirely correct. Standard Quantity or Hours Standard Price or Rate 5.60 X yards $ 5.60 per yard 1.41 hours 11.50 per hour 2.00 hours $ 2.00 per direct labor- hour Standard Cost S 31.36 % 16.20 % Direct materials Direct labor Variable manufacturing overhead Total standard cost 4.00 S 51.56