Answer:
b. not valid.
Explanation:
Validity of a research is an indicator of how logical an argument is, also considers the method used and the design. Validity means that there is an established relationship in the data that has been collected.
In this instance there is no correlation between the number of junk mail received by a family and their wealth, then her argument is not valid.
Answer:
B. People should be allowed to freely buy and sell goods.
Explanation:
Revenue is calculated by the number of goods sold times the price of those goods. It is different from profit, which is revenue minus costs.
Higher prices will likely not lead to increased revenue because as prices rise, demand falls and therefore the number of units sold changes.
