Solving exponential equations 5^x-1 = 125

What term best describes a line ans a point that lie in the same plane

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

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?