An economy consists of three workers: Sam, Andrew, and Darnell. Each works 10 hours a day and can produce two services: mowing lawns and washing cars. In an hour, Sam can either mow 1 lawn or wash 1 car; Andrew can either mow 1 lawn or wash 2 cars; and Darnell can either mow 2 lawns or wash 1 car. For each of the scenarios listed, determine how many lawns will be mowed and how many cars will be washed per day and enter these values into the corresponding row.

a. All three spend all their time mowing lawns.
b. All three spend all their time washing cars.
c. All three spend half their time on each activity.
d. Sam spends half his time on each activity, while Andrew only washes cars and Darnell only mows lawns.

Suppose an economist believes that the price level in the economy is directly related to the money supply, or the amount of money circulating in the economy. the economist proposes the following relationship: p=a x m - p=price level - m=money supply - a=a composite of other factors, including real gdp, that change very slowly over time. how might an economist gather empirical data to test the proposed relationship between money and the price level? an economist would persuade the federal reserve to change the money supply to various levels, and observe the resulting changes in the price level. unlike researchers in the hard sciences, economists cannot study complex relationships using data. economists do not usually develop theoretical models of the economy but only analyze summary statistics about the current state of the economy. an economist would look for data on past changes in the money supply, and note the resulting changes in the price level

Asmartphone manufacturing company uses social media to achieve different business objectives. match each social media activity of the company to the objective it the company achieve.

Abond purchased for $950 was sold for $980 after one year. the interest received during the year is $25. the bond's yield is: