chegg vince kim, of ecoscape company, designs and installs custom lawn and garden irrigation systems for homes and businesses throughout the state. each job is different, requiring different materials and labor for installing the systems. ecoscape estimated the following for the year: number of direct labor hours6,720 direct labor cost$67,200 overhead cost$50,400 during the year, the following actual amounts were experienced: number of direct labor hours6,045 direct labor incurred$66,495 overhead incurred$50,500 vince kim, owner of ecoscape, noticed that the watering systems for many houses in a local subdivision had the same layout and required virtually identical amounts of prime cost. vince met with the subdivision builders and offered to install a basic watering system in each house. the idea was accepted enthusiastically, so vince created a new company, irrigation specialties, to handle the subdivision business. in its first three months in business, irrigation specialties experienced the following: junejulyaugust number of systems installed486888 direct materials used$13,824$19,584$25,344 direct labor incurred$9,216$13,056$16,896 overhead$8,294.40$9,139.20$10,137.60 required: 1. should irrigation specialties use process costing or job-order costing? 2. if irrigation specialties uses an actual costing system, what is the cost of a single system installed in june? in july? in august? round your answers to the nearest dollar. june$fill in the blank 2 per system july$fill in the blank 3 per system august$fill in the blank 4 per system 3. now assume that irrigation specialties uses a normal costing system. estimated overhead for the year is $54,000, and estimated production is 540 watering systems. what is the predetermined overhead rate per system? $fill in the blank 5 per system installed what is the cost of a single system installed in june? in july? in august? june$fill in the blank 6 per system july$fill in the blank 7 per system august$fill in the blank 8 per sys