$5,000 is invested in two different accounts yielding 3% and 3.5% interest. The interest earned on the two accounts is $155. How much money was invested at 3% interest?

Which of the following is not a characteristic of enterprise applications that cause challenges in implementation? a. they introduce "switching costs," making the firm dependent on the vendor. b. they cause integration difficulties as every vendor uses different data and processes. c. they are complex and time consuming to implement. d. they support "best practices" for each business process and function. e. they require sweeping changes to business processes to work with the software.