lines and angles. please help me with this question. whovever answers it ri8 and the 1st person who answers it ,i would mark them the braniest . thank you (6 marks)

The parabola opens: y=√x-4 (principal square root) up down right left

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?

Secant be and cf intersect at point d inside a what is the measure of cde