Let r and s be relations with no indices, and assume that the relations are not sorted. Assuming infinite memory, what is the lowest-cost way (in terms of I/O operations) to compute r?

How are information systems transforming business and why are they so essential for running and managing a business today?

Lisa watched a news report on recycling, and was proud that citizens had stepped up to be more conscious of what they throw away.

The cost of a new machine is $250,000. The machine has a five-year life and no salvage value. If the cash flow each year is equal to 25% of the cost of the machine, calculate the payback period for the project:

The average firm in each industry must have an m/b ratio that is equal to 1.0. true or false? a. true b. false

Which medical savings plan is a combination of a savings account and a high deductible, where contributions are made by the plan participants and funds from the prior year may be rolled over into the following year?

Stuart Weddle's father is 55 years old and wants to set up a cash flow stream that would be forever. He would like to receive $15,000 every year, beginning at the end of this year.

A year ago, you deposited $30,000 into a retirement savings account at a fixed rate of 5.5 percent. Today, you could earn a fixed rate of 6.5 percent on a similar type account. However, your rate is fixed and cannot be adjusted.

When banks spend (or loan) money, the money supply increases and when interest / loan payments are received, the money supply declines ... True false

On March 31 a company needed to estimate its ending inventory to prepare its first quarter financial statements.

Company X had a net income of $25,000 for the year ended December 31, 2016. In 2016, Company X paid the out dividends of $10,000. At the end of 2016, Company X had a retained earnings balance of $60,000.