Please look at the attachment. I need help mainly with multiple choice questions. I figured out the answers to the math portion. Feel free to check if they are correct please

An overhead volume variance will occur whenever: A. variable overhead is applied based on actual hours worked. B. actual total overhead exceeds applied total overhead. C. actual output differs from the standard level of output. D. actual overhead costs differ from budgeted overhead Guidelines for variance investigation include: A. amount of the variance. B. size of the variance relative to cost incurred. C. controllability of the cost associated with the variance. D. All of the other answers are correct. Standard costs constitute a system that may be used as an alternative to a job or process cost system. True False Generally, management does not use ideal standards in planning because these standards do not allow for normal repairs to machinery or rest periods for workers. True False Engineering and time and motion studies may be undertaken to aid in setting standard costs. True False As a general rule, the sooner a variance is isolated, the greater its value in controlling costs. True False Scotch Company manufactures vinyl car roofs. The standard materials cost of the vinyl used per Model S top is 14 square feet of vinyl at a cost of $4.33 per square foot. A production run of 2,045 roofs in August resulted in usage of 25,392 square feet of vinyl at a cost of $5.78 per square foot. The materials usage variance resulting from the above production run was: (MY ANSWER -14020.50) Scotch Company manufactures vinyl car roofs. The standard materials cost of the vinyl used per Model S top is 13 square feet of vinyl at a cost of $4.83 per square foot. A production run of 1,917 roofs in August resulted in usage of 25,304 square feet of vinyl at a cost of $3.51 per square foot. The materials price variance resulting from the above production run was: (MY ANSWER -33401.3) The Maso Company has two departments in which it produces ball bearings. In the molding department, the standard labor cost for each batch is 4 hours at $5.8 per hour. In producing 116 batches, the actual labor cost amounted to $1,010 for 199 hours. The labor rate variance would be: (MY ANSWER -144.20) The Maso Company has two departments in which it produces ball bearings. In the molding department, the standard labor cost for each batch is 2 hours at $4.61 per hour. In producing 104 batches, the actual labor cost amounted to $1,056 for 178 hours. The labor efficiency variance would be: (MY ANSWER 138.30)