A railroad company is required to pay 79,860, which is due three years from now. The company invests 15,000 in a bond with modified duration 1.80, and 45,000 in a bond with modified duration Dmod, to Redington immunize its position against small changes in the yield rate. The annual effective yield rate for each of the bonds is 10%. Calculate Dmod.

Creation landscaping has 1,000 bonds outstanding that are selling for $1,280 each. the company also has 2,000 shares of preferred stock outstanding, currently priced at $27.20 a share. the common stock is priced at $37.00 a share and there are 28,000 shares outstanding. what is the weight of the debt as it relates to the firm's weighted average cost of capital?

Industrial engineers who specialize in ergonomics are concerned with designing workspace and devices operated by workers so as to achieve high productivity and comfort. a paper published in this research area reports on a study of preferred height for an experimental keyboard with large forearm-wrist support. a sample of 31 trained typists resulted in an average preferred height of 80.0 cm

In january, knox company requisitions raw materials for production as follows: job 1 $915, job 2 $1,590, job 3 $771, and general factory use $704. during january, time tickets show that the factory labor of $6,300 was used as follows: job 1 $2,344, job 2 $1,711, job 3 $1,554, and general factory use $691. prepare the job cost sheets for each of the three jobs.