Logistics Solutions maintains warehouses that stock items carried by its dot.com clients. When a client receives an order from a customer, the order is forwarded to Logistics. Solutions, which pulls the item from storage, packs it, and ships it to the customer. The company uses a predetermined variable overhead rate based on direct labor-hours. In the most recent month, 140,000 items were shipped to customers using 5,300 direct labor-hours. The company incurred a total of $15,900 in variable overhead costs. According to the company's standards, 0.03 direct labor-hour is required to fulfill an order for one item and the variable overhead rate is $3.05 per direct labor-hour. Required: 1. What is the standard labor-hours allowed (SH) to ship 140,000 items to customers? 2. What is the standard variable overhead cost allowed ( SHSR ) to ship 140,000 items to customers? 3. What is the variable overhead spending variance? 4 . What are the variable overhead rate variance and the variable overhead efficiency varlance? Note: For requirements 3 and 4 , indicate the effect of each variance by selecting " F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance), Input all amounts as positive values. Do not round intermediate calculations