If h(x)=x power of 2 -5x+7 find the value of h(-5)

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

Does anyone know how to do geometryme with this problem

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?