The Glass Vessel Company has established the following budget for producing one of its hand-blown vases: Materials (silica) 2 pounds @ 1.25 per pound Labor 1.5 hours @ $15.00 per hour In March of the most recent year, Glass Vessel produced 300 vases using 650 pounds of materials. Glass Vessel purchased the 650 pounds of materials for $845. Labor costs for March were $7,200 for 480 hours worked. a. What were Glass Vessel's materials price and materials quantity variances for March? b. What were Glass Vessel's labor price and labor quantity variances for March