Consider the following. (See attachment) a) Find the area of the region. (Round your answer to three decimal places.)
b) Use the integration capabilities of the graphing utility to verify your results. (Round your answer to three decimal places.)

Me. i can't figure out this question. give an explanation too. .

How to find the exponential function y=ca^x, with points (1,2) and (2,1)

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?