Cookie Creations sells 8-inch cookies for $3 each plus a flat $5 delivery fee. Zach has $14 to spend on cookies. Write and solve an equation to determine how many cookies, x, Zach can buy and have delivered.
in the boxes.

The length of each stair is 11 inches. what is the rise, r, for each stair? round to the nearest inch. 2 inches 7 inches 17 inches 24 inches

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

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?