Which of the following is correct concerning opportunity cost? a. to compute opportunity costs, you should subtract benefits from costs. b. rational people should compare various options without considering opportunity costs. c. except to the extent that you pay more for them, opportunity costs should not include the cost of things you would have purchased anyway. d. opportunity costs and the idea of trade-offs are not closely related.

On june 1 of the current year, chad wilson established a business to manage rental property. he completed the following transactions during june: opened a business bank account with a deposit of $28,000 from personal funds. purchased office supplies on account, $2,690. received cash from fees earned for managing rental property, $7,390. paid rent on office and equipment for the month, $3,310. paid creditors on account, $1,230. billed customers for fees earned for managing rental property, $6,130. paid automobile expenses (including rental charges) for the month, $740, and miscellaneous expenses, $370. paid office salaries, $2,330. determined that the cost of supplies on hand was $1,590; therefore, the cost of supplies used was $1,100. withdrew cash for personal use, $2,210. required: 1. indicate the effect of each transaction and the balances after each transaction: for those boxes in which no entry is required, leave the box blank. for those boxes in which you must enter subtractive or negative numbers use a minus sign. (example: -300) answer

Hundreds of a bank's customers have called the customer service call center to complain that they are receiving text messages on their phone telling them to access a website and enter personal information to resolve an issue with their account. what action should the bank take?

True of false: the chancellor of a university has commissioned a team to collect data on students' gpas and the amount of time they spend bar hopping every week (measured in minutes). he wants to know if imposing much tougher regulations on all campus bars to make it more difficult for students to spend time in any campus bar will have a significant impact on general students' gpas. his team should use a t test on the slope of the population regression.