PLZZZ HELP can you explain how I do this with fractions ​

What is the best reason for jacinta to have a savings account in addition to a checking account

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?

Benefit(s) from large economies of scale, in which the costs of goods decrease as output increases. natural monopolles perfect competition