Which of the following statements is correct? a. Opportunity costs equal explicit minus implicit costs. b. Economists consider opportunity costs to be included in a firm’s total revenues. c. Economists consider opportunity costs to be included in a firm’s costs of production. d. All of the above are correct.

Part i a company's cereal is not selling well. create a 10-15-question survey that measures customers' preferences for the company's cereal product. then, answer the following questions: how many scale items will you put in the survey? justify your answer. will you use multiple-choice questions? why or why not? how many scale points will you use in the survey? justify your answer. what data type will be used in the survey? justify your answer. part ii as a second part of this assignment, create a set of survey questions, assuming that you sell cars. you are attempting to measure how customers perceive the quality of the cars that you sell. create three survey questions with simple category scales. justify why you selected those questions and scales. create three survey questions with multiple-choice, single-response scales. justify why you selected those questions and scales. create three survey questions with multiple-choice, multiple-response scales. justify why you selected those questions and scales. create three survey questions with likert scale summated ratings. justify why you selected those questions and scales.

Tina is applying for the position of a daycare assistant at a local childcare center. which document should tina send with a résumé to her potential employer? a. educational certificate b. work experience certificate c. cover letter d. follow-up letter

Annuity payments are assumed to come at the end of each payment period (termed an ordinary annuity). however, an exception occurs when the annuity payments come at the beginning of each period (termed an annuity due). what is the future value of a 13-year annuity of $2,800 per period where payments come at the beginning of each period? the interest rate is 9 percent. use appendix c for an approximate answer, but calculate your final answer using the formula and financial calculator methods. to find the future value of an annuity due when using the appendix tables, add 1 to n and subtract 1 from the tabular value. for example, to find the future value of a $100 payment at the beginning of each period for five periods at 10 percent, go to appendix c for n = 6 and i = 10 percent. look up the value of 7.716 and subtract 1 from it for an answer of 6.716 or $671.60 ($100 × 6.716)