The following income statements were drawn from the annual reports of the denver company and the reno company: denver* reno* net sales $ 33,200 $ 86,900 cost of goods sold (15,440 ) (63,050 ) gross margin 17,760 23,850 less: operating exp. selling and admin. exp. (11,760 ) (15,348 ) net income $ 6,000 $ 8,502 *all figures are reported in thousands of dollars. required a-1. compute the gross margin percentages and return-on-sales ratios of denver and reno. (round your answers to the nearest whole number.)

Aproduction line has three machines a, b, and c, with reliabilities of .96, .86, and .85, respectively. the machines are arranged so that if one breaks down, the others must shut down. engineers are weighing two alternative designs for increasing the line’s reliability. plan 1 involves adding an identical backup line, and plan 2 involves providing a backup for each machine. in either case, three machines (a, b, and c) would be used with reliabilities equal to the original three. a. compute overall system reliability under plan 1. (round your intermediate calculations and final answer to 4 decimal places.) reliability b. compute overall system reliability under plan 2. (round your intermediate calculations and final answer to 4 decimal places.) reliability c. which plan will provide the higher reliability? plan2plan1