Silverstone's production budget for July called for making 39,900 units of a single product. The firm's production standards allow one-half of a machine hour per unit produced. The fixed overhead budget for July was $35,910. Silverstone uses an absorption costing system. Actual activity and costs for July were: Units produced Fixed overhead costs incurred 37,460 $ 37,500 Required a. Calculate the predetermined fixed overhead application rate per machine hour that would be used in July. (Round your answer to 2 decimal places.) per machine hour Predetermined overhead application rate b. Calculate the number of machine hours that would be allowed for actual July production Machine hours allowed c.Calculate the fixed overhead applied to work in process during July. (Do not round intermediate calculations.) Applied overthead d. Calculate the over- or underapplied fixed overhead for July. (Do not round intermediate calculations.) fixed overhead