Mayflower department store offers a gift-wrapping service for its customers. ribbon is the most expensive component of gift wrapping and must be controlled for both the cost of the service and the amount used. the current cost for ribbon is $0.48 per inch. the current usage of ribbon is 10 inches per package. the standard usage is 11 inches per package, with a standard price of $0.55. what are the price, usage, and total variance for the ribbon?