Simplify 8 - {x - (5 + x)}. 3 13 -2x + 3 -2x + 13

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

What can you determine about the solutions of this system

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?