Which expression is equal to 3x + x x+3x x+2 ? fraction form 3x2+10x(x+3)(x+2) x2+12x(x+3)(x+2) 4x2+9x(x+3)(x+2) 4x2+3x(x+3)(x+2)

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?