4. One week Lin's balance at the start of the week was (- $16) but she earned $20 from babysitting and deposited it into her bank account. What was her
account balance at the end of the week?

Missouri has a shape that is similar to a trapezoid with bases of about 198 miles and 276 miles and a height of about 270 miles. what is the area of missouri in square miles? explain how you found the answer.

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

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?