The function f (x) = x + 550 represents the cost of a car including a delivery fee of $550. The function g(x) = 1.07 represents the cost of a car after sales tax.
The composition of these 2 functions can be used to calculate the total cost of a car after taxes and the delivery fee are applied.
What is the difference in dollars and cents between f(g(x)) and g(z)) if the cost of a car is $23,000?

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?