Munoz Publications established the following standard price and costs for a hardcover picture book that the company produces. Assume that Munoz actually produced and sold 30,000 books. The actual sales price and costs incurred follow: Required a. \& b. Determine the flexible budget varlances and also indicate the effect of each varlance by selecting favorable (F) or unfavorable (U). Note: Select "None" If there Is no effect (l.e., zero varlance)