Very confused on this question, whats the answer and why

In trapezoid efgh, m∠gfe=63∘. identify m∠ghe. !

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

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?