Consider the following two mutually exclusive projects:

year cash flow (x) cash flow (y)
0 −$ 15,600 −$ 15,600
1 6,740 7,350
2 7,320 7,700
3 4,840 3,690

1.what is the irr of project x?

2.what is the irr of project y?

3.what is the crossover rate for these two projects?

Of the roles commonly found in the development, maintenance, and compliance efforts related to a policy and standards library, which of the following has the responsibilities of directing policies and procedures designed to protect information resources, identifying vulnerabilities, and developing a security awareness program?

Suppose an economy consists of three sectors: energy (e), manufacturing (m), and agriculture (a). sector e sells 70% of its output to m and 30% to a. sector m sells 30% of its output to e, 50% to a, and retains the rest. sector a sells 15% of its output to e, 30% to m, and retains the rest.

Richardson hired j. c. flood company, a plumbing contractor, to correct a stoppage in the sewer line of her house. the plumbing company's 'snake' device, used to clear the line leading to the main sewer, became caught in the underground line. to release it, the company excavated a portion of the sewer line in richardson's backyard. in the process, the company discovered numerous leaks in a rusty, defective water pipe that ran parallel with the sewer line. to meet public regulations, the water pipe, of a type no longer approved for such service, had to be replaced either then or later, when the yard would have to be excavated again. the plumbing company proceeded to repair the water pipe. though richardson inspected the company's work daily and did not express any objection to the extra work involved in replacing the water pipe, she refused to pay any part of the total bill after the company completed the entire operation. j. c. flood company then sued richardson for the costs of labor and material it had furnished. (c) for what, if anything, should richardson be liable? explain."