Assume that x 2, x 7 and x 8 are the dollars invested in three different common stocks from New York Stock Exchange. In order to diversify the investments, the investing company requires that no more than 60% of the dollars invested can be in "stock 2". The constraint for this requirement can be written as:

Mno corporation uses a job-order costing system with a predetermined overhead rate based on direct labor-hours. the company based its predetermined overhead rate for the current year on the following data: total estimated direct labor-hours 50,000 total estimated fixed manufacturing overhead cost $ 285,000 estimated variable manufacturing overhead per direct labor-hour $ 3.80 recently, job p123 was completed with the following characteristics: total actual direct labor-hours 20 direct materials $ 710 direct labor cost $ 500 the amount of overhead applied to job p123 is closest to: