please explain the questions 13 - 14

Use the following information to answer questions 13-14 Logistics Solutions uses a In the most recent month, 80,000 items were hours. The company incurred a total of $5,300 in variable overhead costs. Accoding to the company standards, 0.02 direct labor-hours are the variable overhead rate is $3.50 per hour predetermined variable overhead rate based on direct labor-hours shipped to customers using 1,700 direct labor required to fulfill an order for one item and 13. According to the standards, what amount of variable overhead costs should have been incurred to fill the order for the 80,000 items? 14. What is the total variable overhead variance? (Indicate a dollar amount and favorable unfavorable)