Which accounting change should be applied prospectively? cash basis of accounting for vacation pay to the accrual basis. straight-line method of depreciation for previously recorded assets to the double-declining-balance method. presentation of statements of individual entities to their inclusion in consolidated statements. income statement approach to account for accounts receivable and bad debt expense was changed to the balance sheet approach.

Acompany manufactures x units of product a and y units of product b, on two machines, i and ii. it has been determined that the company will realize a profit of $3 on each unit of product a and $4 on each unit of product b. to manufacture a unit of product a requires 7 min on machine i and 5 min on machine ii. to manufacture a unit of product b requires 8 min on mchine i and 5 min on machine ii. there are 175 min available on machine i and 125 min available on machine ii in each work shift. how many units of a product should be produced in each shift to maximize the company's profit p?