What is 4/9 in the simplest form?

Use set builder notation to represent the following set: { -3, -2, -1, 0}

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?

In the diagram, gef and hef are congruent. what is the value of x