Identify the steps that complete the proof

Which of the following is true for the relation f(x)=2x^2+1

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

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?