Marissa works at a company that makes perfume. She noticed many samples of the perfume were not passing inspection. She conducted some studies into why this is happening and found some helpful results. Marissa should communicate this information by .

The questions of economics address which of the following ? check all that apply

The sign at the bank reads, "wait here for the first available teller," suggests the use of a waiting line system.a. multiple server, single phaseb. random server, single phasec. single server, multiphased. multiple server, multiphasee. dynamic server, single phase

Rate of return douglas keel, a financial analyst for orange industries, wishes to estimate the rate of return for two similar-risk investments, x and y. douglas's research indicates that the immediate past returns will serve as reasonable estimates of future returns. a year earlier, investment x had a market value of $27 comma 000; and investment y had a market value of $46 comma 000. during the year, investment x generated cash flow of $2 comma 025 and investment y generated cash flow of $ 6 comma 770. the current market values of investments x and y are $28 comma 582 and $46 comma 000, respectively. a. calculate the expected rate of return on investments x and y using the most recent year's data. b. assuming that the two investments are equally risky, which one should douglas recommend? why?